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-rw-r--r--.envrc1
-rw-r--r--.gitignore2
-rw-r--r--LICENSE.txt20
-rw-r--r--README.org7
-rw-r--r--cmd/dnsupdate/README.org7
-rw-r--r--cmd/dnsupdate/main.go126
-rw-r--r--cmd/dnsupdate/ts.go89
-rw-r--r--configs/wireguard.toml21
-rw-r--r--docs/backups.org197
-rw-r--r--docs/desktop.org19
-rw-r--r--docs/gcloud.org21
-rw-r--r--docs/gnome-keyring.org66
-rw-r--r--docs/install.org153
-rw-r--r--docs/tools.org128
-rw-r--r--docs/wireguard.org23
-rw-r--r--flake.lock232
-rw-r--r--flake.nix88
-rw-r--r--go.mod8
-rw-r--r--go.sum629
-rw-r--r--home/beets/default.nix46
-rw-r--r--home/bluetooth/default.nix10
-rw-r--r--home/default.nix43
-rw-r--r--home/direnv/default.nix28
-rw-r--r--home/documentation/default.nix9
-rw-r--r--home/drone-cli/default.nix11
-rw-r--r--home/element/default.nix10
-rw-r--r--home/emacs/default.nix20
-rw-r--r--home/eog/default.nix9
-rw-r--r--home/evince/default.nix9
-rw-r--r--home/feh/default.nix8
-rw-r--r--home/firefox/default.nix61
-rw-r--r--home/fish/default.nix29
-rw-r--r--home/flac/default.nix17
-rw-r--r--home/gcloud/default.nix10
-rw-r--r--home/git/commit.template22
-rw-r--r--home/git/default.nix55
-rw-r--r--home/go/default.nix17
-rw-r--r--home/gpg/default.nix33
-rw-r--r--home/gtk/default.nix47
-rw-r--r--home/mail/accounts/default.nix71
-rw-r--r--home/mail/default.nix11
-rw-r--r--home/mpv/default.nix20
-rw-r--r--home/packages/default.nix18
-rw-r--r--home/pass/default.nix40
-rw-r--r--home/pass/git-pass-mapping.ini9
-rw-r--r--home/pcmanfm/default.nix9
-rw-r--r--home/python/default.nix9
-rw-r--r--home/scanner/default.nix11
-rw-r--r--home/scripts/default.nix5
-rw-r--r--home/scripts/perf-flamegraph.nix22
-rw-r--r--home/seahorse/default.nix9
-rw-r--r--home/ssh/default.nix23
-rw-r--r--home/sublime-music/default.nix10
-rw-r--r--home/terminal/alacritty/default.nix27
-rw-r--r--home/terminal/default.nix17
-rw-r--r--home/tmux/default.nix25
-rw-r--r--home/transmission-remote/default.nix10
-rw-r--r--home/vlc/default.nix9
-rw-r--r--home/wm/default.nix19
-rw-r--r--home/wm/gammastep/default.nix16
-rw-r--r--home/wm/mako/default.nix28
-rw-r--r--home/wm/sway/default.nix113
-rw-r--r--home/wm/swaylock/config4
-rw-r--r--home/wm/swaylock/default.nix27
-rw-r--r--home/wm/waybar/default.nix52
-rw-r--r--home/wm/waybar/style.css77
-rw-r--r--home/wm/wofi/config4
-rw-r--r--home/wm/wofi/default.nix8
-rw-r--r--home/xdg/default.nix46
-rw-r--r--home/yt-dlp/config26
-rw-r--r--home/yt-dlp/default.nix12
-rw-r--r--home/zsh/completion-style.zsh34
-rw-r--r--home/zsh/default.nix56
-rw-r--r--home/zsh/options.zsh27
-rw-r--r--home/zsh/prompt.zsh11
-rw-r--r--home/zsh/tmux.zsh3
-rw-r--r--hosts/aptos/default.nix32
-rw-r--r--hosts/aptos/hardware.nix45
-rw-r--r--hosts/aptos/home.nix14
-rw-r--r--hosts/aptos/networking.nix38
-rw-r--r--hosts/aptos/profile.nix14
-rw-r--r--hosts/aptos/secrets/gcloud/world-nix.agebin0 -> 2752 bytes
-rw-r--r--hosts/aptos/secrets/restic/repo-users.age9
-rw-r--r--hosts/aptos/secrets/secrets.nix28
-rw-r--r--hosts/aptos/secrets/syncthing/cert.agebin0 -> 1209 bytes
-rw-r--r--hosts/aptos/secrets/syncthing/key.agebin0 -> 664 bytes
-rw-r--r--hosts/aptos/secrets/wireguard_privatekey.age10
-rw-r--r--hosts/aptos/services.nix19
-rw-r--r--hosts/aptos/sound.nix1
-rw-r--r--hosts/carmel/boot.nix14
-rw-r--r--hosts/carmel/default.nix23
-rw-r--r--hosts/carmel/hardware.nix46
-rw-r--r--hosts/carmel/home.nix14
-rw-r--r--hosts/carmel/networking.nix35
-rw-r--r--hosts/carmel/profile.nix5
-rw-r--r--hosts/carmel/sound.nix1
-rw-r--r--hosts/tahoe/boot.nix17
-rw-r--r--hosts/tahoe/default.nix22
-rw-r--r--hosts/tahoe/hardware.nix63
-rw-r--r--hosts/tahoe/home.nix17
-rw-r--r--hosts/tahoe/networking.nix38
-rw-r--r--hosts/tahoe/secrets/acme/credentials.agebin0 -> 461 bytes
-rw-r--r--hosts/tahoe/secrets/acme/gcp_service_account.json.agebin0 -> 2763 bytes
-rw-r--r--hosts/tahoe/secrets/drone/secrets.agebin0 -> 697 bytes
-rw-r--r--hosts/tahoe/secrets/drone/shared-secrets5
-rw-r--r--hosts/tahoe/secrets/rclone/config.ini.age11
-rw-r--r--hosts/tahoe/secrets/rclone/gcs_service_account.json.agebin0 -> 2660 bytes
-rw-r--r--hosts/tahoe/secrets/restic/repo-systems.age9
-rw-r--r--hosts/tahoe/secrets/secrets.nix36
-rw-r--r--hosts/tahoe/secrets/syncthing/cert.agebin0 -> 1248 bytes
-rw-r--r--hosts/tahoe/secrets/syncthing/key.age10
-rw-r--r--hosts/tahoe/secrets/traefik/gcp_service_account.json.agebin0 -> 2827 bytes
-rw-r--r--hosts/tahoe/secrets/unifi/unifi-poller.age10
-rw-r--r--hosts/tahoe/secrets/wireguard_privatekey.age11
-rw-r--r--hosts/tahoe/services.nix54
-rw-r--r--lib/default.nix35
-rw-r--r--lib/private-wireguard.nix41
-rw-r--r--modules/default.nix23
-rw-r--r--modules/hardware/amd/default.nix13
-rw-r--r--modules/hardware/bluetooth/default.nix64
-rw-r--r--modules/hardware/default.nix5
-rw-r--r--modules/hardware/intel/default.nix13
-rw-r--r--modules/hardware/networking/default.nix11
-rw-r--r--modules/hardware/sound/default.nix36
-rw-r--r--modules/hardware/ssd/default.nix5
-rw-r--r--modules/home/default.nix27
-rw-r--r--modules/programs/default.nix5
-rw-r--r--modules/programs/sway/default.nix25
-rw-r--r--modules/secrets/default.nix29
-rw-r--r--modules/services/avahi/default.nix14
-rw-r--r--modules/services/backup/default.nix91
-rw-r--r--modules/services/default.nix27
-rw-r--r--modules/services/drone/default.nix39
-rw-r--r--modules/services/drone/runner-docker/default.nix39
-rw-r--r--modules/services/drone/runner-exec/default.nix54
-rw-r--r--modules/services/drone/server/default.nix52
-rw-r--r--modules/services/fwupd/default.nix5
-rw-r--r--modules/services/gitea/default.nix63
-rw-r--r--modules/services/gnome/default.nix27
-rw-r--r--modules/services/grafana/dashboards/fly-app_rev1.json1739
-rw-r--r--modules/services/grafana/dashboards/gitea.json1176
-rw-r--r--modules/services/grafana/dashboards/nas.json4923
-rw-r--r--modules/services/grafana/dashboards/node-exporter.json14116
-rw-r--r--modules/services/grafana/dashboards/rtr.json3784
-rw-r--r--modules/services/grafana/default.nix54
-rw-r--r--modules/services/metrics-exporter/default.nix18
-rw-r--r--modules/services/navidrome/default.nix42
-rw-r--r--modules/services/nginx/default.nix49
-rw-r--r--modules/services/nginx/sso/default.nix80
-rw-r--r--modules/services/prometheus/default.nix164
-rw-r--r--modules/services/rclone/default.nix37
-rw-r--r--modules/services/samba/default.nix51
-rw-r--r--modules/services/sourcegraph/default.nix46
-rw-r--r--modules/services/ssh-server/default.nix17
-rw-r--r--modules/services/syncthing/default.nix50
-rw-r--r--modules/services/tailscale/default.nix13
-rw-r--r--modules/services/thermald/default.nix10
-rw-r--r--modules/services/tlp/default.nix24
-rw-r--r--modules/services/transmission/default.nix54
-rw-r--r--modules/services/unifi/default.nix87
-rw-r--r--modules/system/boot/default.nix44
-rw-r--r--modules/system/btrfs/default.nix5
-rw-r--r--modules/system/console/default.nix6
-rw-r--r--modules/system/default.nix16
-rw-r--r--modules/system/documentation/default.nix14
-rw-r--r--modules/system/fonts/default.nix29
-rw-r--r--modules/system/locale/default.nix7
-rw-r--r--modules/system/nix/default.nix16
-rw-r--r--modules/system/packages/default.nix51
-rw-r--r--modules/system/security/default.nix6
-rw-r--r--modules/system/users/default.nix39
-rw-r--r--profiles/bluetooth/default.nix9
-rw-r--r--profiles/default.nix4
-rw-r--r--profiles/desktop/default.nix34
-rw-r--r--profiles/gtk/default.nix13
-rw-r--r--profiles/laptop/default.nix15
-rw-r--r--profiles/multimedia/default.nix12
-rw-r--r--profiles/trusted/default.nix22
-rw-r--r--profiles/wm/default.nix18
-rw-r--r--users/fcuny/blog/Dockerfile7
-rw-r--r--users/fcuny/blog/README.org8
-rw-r--r--users/fcuny/blog/archetypes/default.md5
-rw-r--r--users/fcuny/blog/config.toml46
-rw-r--r--users/fcuny/blog/content/blog/git-link-and-sourcegraph.org49
-rw-r--r--users/fcuny/blog/content/blog/google-doc-failure.org56
-rw-r--r--users/fcuny/blog/content/blog/leaving-twitter.org10
-rw-r--r--users/fcuny/blog/content/blog/tailscale-docker-https.org121
-rw-r--r--users/fcuny/blog/flake.lock42
-rw-r--r--users/fcuny/blog/flake.nix46
-rw-r--r--users/fcuny/blog/fly.toml40
-rw-r--r--users/fcuny/blog/layouts/_default/baseof.html11
-rw-r--r--users/fcuny/blog/layouts/_default/list.html10
-rw-r--r--users/fcuny/blog/layouts/_default/single.html54
-rw-r--r--users/fcuny/blog/layouts/index.atom.xml24
-rw-r--r--users/fcuny/blog/layouts/index.html20
-rw-r--r--users/fcuny/blog/layouts/partials/footer.html32
-rw-r--r--users/fcuny/blog/layouts/partials/head.html18
-rw-r--r--users/fcuny/blog/layouts/partials/header.html10
-rw-r--r--users/fcuny/blog/layouts/partials/postlist.html12
-rw-r--r--users/fcuny/blog/layouts/taxonomy/tag.html6
-rwxr-xr-xusers/fcuny/blog/scripts/deploy.sh14
-rw-r--r--users/fcuny/blog/static/CNAME1
-rw-r--r--users/fcuny/blog/static/css/custom.css201
-rw-r--r--users/fcuny/blog/static/humans.txt10
-rw-r--r--users/fcuny/blog/static/profile.jpgbin0 -> 895450 bytes
-rw-r--r--users/fcuny/blog/static/resume.html209
-rw-r--r--users/fcuny/blog/static/resume.pdfbin0 -> 46970 bytes
-rw-r--r--users/fcuny/blog/static/ssh.pub.sig2
-rw-r--r--users/fcuny/notes/Dockerfile7
-rw-r--r--users/fcuny/notes/archetypes/default.md5
-rw-r--r--users/fcuny/notes/config.toml41
-rw-r--r--users/fcuny/notes/content/notes/containerd-to-firecracker.org568
-rw-r--r--users/fcuny/notes/content/notes/making-sense-intel-amd-cpus.org131
-rw-r--r--users/fcuny/notes/content/notes/stuff-about-pcie.org199
-rw-r--r--users/fcuny/notes/content/notes/working-with-go.org213
-rw-r--r--users/fcuny/notes/content/notes/working-with-nix.org26
-rw-r--r--users/fcuny/notes/flake.lock42
-rw-r--r--users/fcuny/notes/flake.nix46
-rw-r--r--users/fcuny/notes/fly.toml37
-rw-r--r--users/fcuny/notes/layouts/_default/baseof.html10
-rw-r--r--users/fcuny/notes/layouts/_default/list.html10
-rw-r--r--users/fcuny/notes/layouts/_default/single.html40
-rw-r--r--users/fcuny/notes/layouts/index.html22
-rw-r--r--users/fcuny/notes/layouts/partials/head.html17
-rw-r--r--users/fcuny/notes/layouts/partials/header.html5
-rw-r--r--users/fcuny/notes/layouts/partials/postlist.html12
-rw-r--r--users/fcuny/notes/layouts/taxonomy/tag.html6
-rwxr-xr-xusers/fcuny/notes/scripts/deploy.sh14
-rw-r--r--users/fcuny/notes/static/CNAME1
-rw-r--r--users/fcuny/notes/static/css/custom.css194
-rw-r--r--users/fcuny/notes/static/humans.txt10
231 files changed, 34257 insertions, 0 deletions
diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..698c49d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/users/fcuny/blog/.hugo_build.lock
+/users/fcuny/notes/.hugo_build.lock
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..ac375e1
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,20 @@
+Copyright (c) 2022 Franck Cuny
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/README.org b/README.org
new file mode 100644
index 0000000..39660ed
--- /dev/null
+++ b/README.org
@@ -0,0 +1,7 @@
+#+TITLE: world - nix configuration
+
+* nixos
+To rebuild the host and home-manager:
+#+begin_src sh
+sudo nixos-rebuild switch  --flake .
+#+end_src
diff --git a/cmd/dnsupdate/README.org b/cmd/dnsupdate/README.org
new file mode 100644
index 0000000..a80e407
--- /dev/null
+++ b/cmd/dnsupdate/README.org
@@ -0,0 +1,7 @@
+#+TITLE: dnsupdate
+
+Utility to update the managed zone for =fcuny.xyz= in Google Cloud.
+
+I use the domain =fcuny.xyz= to run a number of services on an IP provided by Tailscale. I don't want these domains to be visible on the web, but I also want to have a valid HTTPS certificate for them. By having a proper DNS I can use ACME to get the certificates, without making them available.
+
+Instead of updating the subdomains through the [[https://console.cloud.google.com/net-services/dns/zones/fcuny-xyz/details?project=fcuny-homelab][console]], I can now run this program.
diff --git a/cmd/dnsupdate/main.go b/cmd/dnsupdate/main.go
new file mode 100644
index 0000000..6748ee9
--- /dev/null
+++ b/cmd/dnsupdate/main.go
@@ -0,0 +1,126 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	dns "google.golang.org/api/dns/v1"
+)
+
+const (
+	GCP_PROJECT_NAME = "fcuny-homelab"
+	GCP_MANAGED_ZONE = "fcuny-xyz"
+	TS_DEVICE_NAME   = "tahoe"
+	TTL              = 300
+)
+
+var desiredRecords = []string{
+	"bt",
+	"cs",
+	"dash",
+	"drone",
+	"music",
+	"unifi",
+}
+
+func main() {
+	ctx := context.Background()
+
+	// we only care about IPv4 for now
+	tsIpV4Addresses, _, err := getTsIpsDevice(ctx, TS_DEVICE_NAME)
+	if err != nil {
+		log.Fatalf("failed to get the IP addresses for %s: %v", TS_DEVICE_NAME, err)
+	}
+
+	svc, err := dns.NewService(ctx)
+	if err != nil {
+		log.Fatalf("failed to create the client for Google Cloud DNS: %v", err)
+	}
+
+	zone, err := svc.ManagedZones.Get(GCP_PROJECT_NAME, GCP_MANAGED_ZONE).Context(ctx).Do()
+	if err != nil {
+		log.Fatalf("failed to get information about the managed zone %s: %+v", GCP_MANAGED_ZONE, err)
+	}
+
+	recordSets, err := svc.ResourceRecordSets.List(GCP_PROJECT_NAME, GCP_MANAGED_ZONE).Context(ctx).Do()
+	if err != nil {
+		log.Fatalf("failed to get the list of records: %+v", err)
+	}
+
+	var (
+		existingRecordSets = []*dns.ResourceRecordSet{}
+		recordSetsToAdd    = []*dns.ResourceRecordSet{}
+		recordSetsToDelete = []*dns.ResourceRecordSet{}
+	)
+
+	for _, record := range recordSets.Rrsets {
+		if record.Type == "A" {
+			existingRecordSets = append(existingRecordSets, record)
+		}
+	}
+
+	// first pass: create what's missing
+	for _, subdomain := range desiredRecords {
+		found := false
+		subdomain = fmt.Sprintf("%s.%s", subdomain, zone.DnsName)
+		for _, r := range existingRecordSets {
+			if subdomain == r.Name && r.Type == "A" {
+				// check that the IP addresses are correct
+				ipsFound := 0
+				for _, rr := range r.Rrdatas {
+					for _, ip := range tsIpV4Addresses {
+						if rr == ip {
+							ipsFound += 1
+							continue
+						}
+					}
+				}
+				// while we found the subdomain with the correct type,
+				// we also need to make sure the list of IPs is
+				// correct. If they are not, we delete the record and
+				// add it again with the correct values.
+				if ipsFound == len(tsIpV4Addresses) {
+					found = true
+					continue
+				} else {
+					log.Printf("will delete %s (incorrect IPv4 addresses)\n", subdomain)
+					recordSetsToDelete = append(recordSetsToDelete, r)
+				}
+			}
+		}
+		if !found {
+			log.Printf("will add %s\n", subdomain)
+			r := &dns.ResourceRecordSet{
+				Name:    subdomain,
+				Type:    "A",
+				Ttl:     TTL,
+				Rrdatas: tsIpV4Addresses,
+			}
+			recordSetsToAdd = append(recordSetsToAdd, r)
+		}
+	}
+
+	// second pass: delete what's not needed
+	for _, r := range existingRecordSets {
+		found := false
+		for _, subdomain := range desiredRecords {
+			subdomain = fmt.Sprintf("%s.%s", subdomain, zone.DnsName)
+			if subdomain == r.Name && r.Type == "A" {
+				found = true
+				continue
+			}
+		}
+		if !found {
+			log.Printf("will delete %s\n", r.Name)
+			recordSetsToDelete = append(recordSetsToDelete, r)
+		}
+	}
+
+	if len(recordSetsToAdd) > 0 || len(recordSetsToDelete) > 0 {
+		change := &dns.Change{Additions: recordSetsToAdd, Deletions: recordSetsToDelete}
+		if _, err = svc.Changes.Create(GCP_PROJECT_NAME, GCP_MANAGED_ZONE, change).Context(ctx).Do(); err != nil {
+			log.Fatalf("failed to apply the change: %+v", err)
+		}
+	}
+}
diff --git a/cmd/dnsupdate/ts.go b/cmd/dnsupdate/ts.go
new file mode 100644
index 0000000..4d3ebb3
--- /dev/null
+++ b/cmd/dnsupdate/ts.go
@@ -0,0 +1,89 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"os"
+
+	"inet.af/netaddr"
+)
+
+type device struct {
+	Hostname  string   `json:"hostname"`
+	ID        string   `json:"id"`
+	Addresses []string `json:"addresses"`
+}
+
+const (
+	TS_NAME       = "franck.cuny@gmail.com"
+	TS_API_DOMAIN = "api.tailscale.com"
+)
+
+func getTsDevice(ctx context.Context, deviceName string) (*device, error) {
+	apiKey, found := os.LookupEnv("TS_API_KEY")
+	if !found {
+		return nil, errors.New("the environment variable TS_API_KEY is not set")
+	}
+
+	url := fmt.Sprintf("https://%s/api/v2/tailnet/%s/devices", TS_API_DOMAIN, TS_NAME)
+	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	req.SetBasicAuth(apiKey, "")
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("non-ok status code %d returned from tailscale api: %s", resp.StatusCode, resp.Status)
+	}
+	var buf struct {
+		Devices []device `json:"devices"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&buf); err != nil {
+		return nil, err
+	}
+
+	for _, d := range buf.Devices {
+		if d.Hostname == deviceName {
+			return &d, nil
+		}
+	}
+	return nil, fmt.Errorf("could not find the tailscale device named %s", deviceName)
+}
+
+// Get the Tailscale IPv4 and IPv6 addresses associated with the given device.
+func getTsIpsDevice(ctx context.Context, device string) ([]string, []string, error) {
+	ts_device, err := getTsDevice(ctx, device)
+	if err != nil {
+		return nil, nil, fmt.Errorf("failed to get Tailscale device information: %v", err)
+	}
+
+	var (
+		tsIpV4Addresses = []string{}
+		tsIpV6Addresses = []string{}
+	)
+	for _, ipString := range ts_device.Addresses {
+		// we convert the string to a netaddr.IP so we can check if
+		// it's an IP v4 or v6. We need to know what's the version in
+		// order to use it properly when creating/updating the
+		// record. Then we convert it back as a string, since this is
+		// what the DNS API expect.
+		ip := netaddr.MustParseIP(ipString)
+		if ip.Is4() {
+			tsIpV4Addresses = append(tsIpV4Addresses, ip.String())
+		} else {
+			tsIpV6Addresses = append(tsIpV6Addresses, ip.String())
+		}
+	}
+
+	return tsIpV4Addresses, tsIpV6Addresses, nil
+}
diff --git a/configs/wireguard.toml b/configs/wireguard.toml
new file mode 100644
index 0000000..6061847
--- /dev/null
+++ b/configs/wireguard.toml
@@ -0,0 +1,21 @@
+mask4 = 32
+subnet4 = "192.168.6"
+
+[peers.aptos]
+ipv4 = 110
+key = "DP3caAlh07OOU61u2L2QfEhakt/mVEGrMBVONNvpNhU="
+
+[peers.nas]
+ipv4 = 10
+key = "SFlgoY+fQDUnI2D6Xp3JhqFKWsZABqahCv8IgKPWizA="
+externalIp = "192.168.0.10"
+
+[peers.rtr]
+ipv4= 1
+key = "P4gxkIoQ9Ep6QqfTquJYbBkMPDJQkVE9v1eYh/uJwG8="
+externalIp = "192.168.0.1"
+
+[peers.tahoe]
+ipv4 = 20
+key = "vx1TFObOe+GjwnSLDwOY1BVYGB7UayOOIHNQRZ2jtx4="
+externalIp = "192.168.0.107"
diff --git a/docs/backups.org b/docs/backups.org
new file mode 100644
index 0000000..0b0d25a
--- /dev/null
+++ b/docs/backups.org
@@ -0,0 +1,197 @@
+#+TITLE: Backups
+
+There's a number of backups that are managed by the NAS.
+
+In order for the backup to work, there's two files that need to be provisioned:
+- =/etc/restic/password= this contains the password for restic. It's currently stored in 1password (named *backup on nas*).
+- =/etc/restic/google.json= this contains the authn/authz information to store our data in various GCS. This is stored in 1password, with restic's password.
+
+* restic
+For backups I'm using [[https://restic.readthedocs.io/][restic]].
+
+On the NAS itself, we backup the git repositories to =/data/backups=.
+
+The password is stored in =/etc/restic/password= (this is not managed by puppet for now, and the password is stored within 1password).
+** List the snapshots
+To get a list of snapshots:
+#+BEGIN_SRC sh :dir /ssh:nas: :results verbatim
+sudo restic -r /data/backups/ -p /etc/restic/password snapshots
+#+END_SRC
+
+#+RESULTS:
+#+begin_example
+repository a37cfab5 opened successfully, password is correct
+ID        Time                 Host        Tags        Paths
+---------------------------------------------------------------------------------
+e36e9100  2020-02-29 08:43:37  nas                     /home/git/repositories
+603a46a7  2020-03-31 08:39:03  nas                     /home/git/repositories
+e890453b  2020-04-30 08:22:37  nas                     /home/git/repositories
+0affa4d9  2020-05-10 08:47:18  nas                     /home/git/repositories
+a01d8be4  2020-07-31 08:41:25  nas                     /home/git/repositories
+78afb27a  2020-08-31 08:23:52  nas                     /home/git/repositories
+68a417b1  2020-09-30 08:44:49  nas                     /home/git/repositories
+ac6701b4  2020-10-18 06:00:00  nas         git         /home/git/repositories
+4f183431  2020-10-25 06:00:00  nas         git         /home/git/repositories
+aec0b472  2020-10-25 07:24:10  aptos       home        /home/fcuny
+3e98a872  2020-10-30 06:00:00  nas         git         /home/git/repositories
+0268f733  2020-10-31 06:00:00  nas         git         /home/git/repositories
+1b840de3  2020-11-01 06:00:00  nas         git         /home/git/repositories
+2d224944  2020-11-02 06:00:00  nas         git         /home/git/repositories
+fa0107dd  2020-11-03 06:00:00  nas         git         /home/git/repositories
+1165032b  2020-11-04 06:00:00  nas         git         /home/git/repositories
+612b66e3  2020-11-05 06:00:00  nas         git         /home/git/repositories
+2de6fb79  2020-12-31 06:01:19  nas         gitea       /data/containers/gitea
+ece08207  2020-12-31 06:01:41  nas         traefik     /data/containers/traefik
+d59bd75a  2020-12-31 06:06:19  nas         grafana     /data/containers/grafana
+168c0ddf  2020-12-31 06:07:24  nas         unifi       /data/containers/unifi
+5882ffe4  2021-01-27 18:58:06  aptos       home        /home/fcuny
+3565b23b  2021-01-31 06:05:18  nas         traefik     /data/containers/traefik
+653d4411  2021-01-31 06:14:12  nas         gitea       /data/containers/gitea
+38a3e50e  2021-01-31 06:15:13  nas         unifi       /data/containers/unifi
+542e2c80  2021-01-31 06:15:13  nas         grafana     /data/containers/grafana
+8c804805  2021-02-06 19:13:24  aptos       home        /home/fcuny
+3f38d369  2021-02-28 06:03:28  nas         grafana     /data/containers/grafana
+ef2042e2  2021-02-28 06:11:50  nas         unifi       /data/containers/unifi
+b429ef99  2021-02-28 06:18:02  nas         gitea       /data/containers/gitea
+b73f5128  2021-02-28 06:18:04  nas         traefik     /data/containers/traefik
+7a7e3e06  2021-03-28 09:05:35  aptos       home        /home/fcuny
+3a0c790f  2021-03-30 06:12:20  nas         grafana     /data/containers/grafana
+58179a2f  2021-03-31 06:05:04  nas         gitea       /data/containers/gitea
+fc4ede5d  2021-03-31 06:08:18  nas         unifi       /data/containers/unifi
+5eaa5148  2021-03-31 06:17:13  nas         traefik     /data/containers/traefik
+d7c95e53  2021-04-27 18:10:36  aptos       home        /home/fcuny
+4c702501  2021-04-30 06:02:11  nas         gitea       /data/containers/gitea
+8de29c3c  2021-04-30 06:04:42  nas         unifi       /data/containers/unifi
+66664254  2021-04-30 06:08:25  nas         traefik     /data/containers/traefik
+9a3ad896  2021-04-30 06:15:15  nas         grafana     /data/containers/grafana
+344ef4c3  2021-05-15 14:22:05  aptos       home        /home/fcuny
+6141b888  2021-05-30 06:14:37  nas         traefik     /data/containers/traefik
+106c4819  2021-05-31 06:04:56  nas         grafana     /data/containers/grafana
+8e0ba4c3  2021-05-31 06:12:37  nas         gitea       /data/containers/gitea
+8cba7fbf  2021-05-31 06:17:26  nas         unifi       /data/containers/unifi
+2cc04ad6  2021-06-28 17:08:25  aptos       home        /home/fcuny
+8b04e195  2021-06-30 06:03:56  nas         grafana     /data/containers/grafana
+d21a464f  2021-06-30 06:09:56  nas         unifi       /data/containers/unifi
+f180e1a0  2021-06-30 06:10:20  nas         gitea       /data/containers/gitea
+b9e0ce43  2021-06-30 06:11:50  nas         traefik     /data/containers/traefik
+512e80fb  2021-07-23 17:25:45  aptos       home        /home/fcuny
+28b32d1f  2021-07-31 06:03:50  nas         gitea       /data/containers/gitea
+884574c8  2021-07-31 06:11:13  nas         unifi       /data/containers/unifi
+a61cd90f  2021-07-31 06:16:50  nas         grafana     /data/containers/grafana
+614f9123  2021-07-31 06:19:38  nas         traefik     /data/containers/traefik
+17698a8a  2021-08-14 06:05:34  nas         git         /data/containers/git
+b5674e76  2021-08-16 13:47:52  aptos       home        /home/fcuny
+d7c251f6  2021-08-31 06:16:07  nas         gitea       /data/containers/gitea
+ef20f101  2021-08-31 06:16:11  nas         unifi       /data/containers/unifi
+b7cd0d5c  2021-08-31 06:16:16  nas         grafana     /data/containers/grafana
+facffc9a  2021-08-31 06:16:19  nas         traefik     /data/containers/traefik
+b2d31938  2021-08-31 06:16:22  nas         syncthing   /data/containers/syncthing
+8ab3bee2  2021-09-27 10:35:27  aptos       home        /home/fcuny
+1559f48c  2021-09-30 04:11:21  nas         gitea       /data/containers/gitea
+353d202d  2021-09-30 04:11:25  nas         unifi       /data/containers/unifi
+b567fec1  2021-09-30 04:11:30  nas         grafana     /data/containers/grafana
+d7b239c1  2021-09-30 04:11:33  nas         traefik     /data/containers/traefik
+4890d748  2021-09-30 04:11:35  nas         syncthing   /data/containers/syncthing
+4d6b6646  2021-10-31 04:11:55  nas         gitea       /data/containers/gitea
+b2820465  2021-10-31 04:12:01  nas         unifi       /data/containers/unifi
+cd2230ff  2021-10-31 04:12:07  nas         grafana     /data/containers/grafana
+807f1bb3  2021-10-31 04:12:12  nas         traefik     /data/containers/traefik
+5d9c2314  2021-10-31 04:12:15  nas         syncthing   /data/containers/syncthing
+5f1a2de0  2021-10-31 12:38:40  carmel      home        /home/fcuny
+89f6bbec  2021-10-31 14:53:27  aptos       home        /home/fcuny
+5bb120c9  2021-11-05 15:54:28  aptos       home        /home/fcuny
+5fb31f63  2021-11-06 16:05:30  aptos       home        /home/fcuny
+9bfd32e2  2021-11-07 18:02:06  aptos       home        /home/fcuny
+d4dd252f  2021-11-17 13:40:16  aptos       home        /home/fcuny
+b072a3a1  2021-11-21 04:18:17  nas         gitea       /data/containers/gitea
+6ba6bff3  2021-11-21 04:18:32  nas         unifi       /data/containers/unifi
+bb697aae  2021-11-21 04:18:38  nas         grafana     /data/containers/grafana
+33ba0e83  2021-11-21 04:18:41  nas         traefik     /data/containers/traefik
+e2cae3b5  2021-11-21 04:18:43  nas         syncthing   /data/containers/syncthing
+1caaca88  2021-11-21 13:35:29  carmel      home        /home/fcuny
+97d034ce  2021-11-27 19:16:12  aptos       home        /home/fcuny
+5fa6b510  2021-11-28 04:11:27  nas         gitea       /data/containers/gitea
+6670d391  2021-11-28 04:11:32  nas         unifi       /data/containers/unifi
+77d11ce4  2021-11-28 04:11:38  nas         grafana     /data/containers/grafana
+04ee74c6  2021-11-28 04:11:40  nas         traefik     /data/containers/traefik
+1371d8d2  2021-11-28 04:11:43  nas         syncthing   /data/containers/syncthing
+3b2a45ee  2021-11-28 09:19:13  aptos       home        /home/fcuny
+b19902e6  2021-11-28 15:25:29  carmel      home        /home/fcuny
+02fb34d8  2021-11-30 04:05:15  nas         gitea       /data/containers/gitea
+1ac8f79f  2021-11-30 04:05:21  nas         unifi       /data/containers/unifi
+848505be  2021-11-30 04:05:26  nas         grafana     /data/containers/grafana
+2e48e232  2021-11-30 04:05:29  nas         traefik     /data/containers/traefik
+47732732  2021-11-30 04:05:34  nas         syncthing   /data/containers/syncthing
+dd141856  2021-11-30 12:06:56  carmel      home        /home/fcuny
+00e5429b  2021-12-03 18:31:51  aptos       home        /home/fcuny
+31b849ad  2021-12-05 04:06:10  nas         gitea       /data/containers/gitea
+8cc78932  2021-12-05 04:06:26  nas         unifi       /data/containers/unifi
+b7364a55  2021-12-05 04:06:38  nas         grafana     /data/containers/grafana
+043c4b36  2021-12-05 04:06:43  nas         traefik     /data/containers/traefik
+2e415963  2021-12-05 04:06:48  nas         syncthing   /data/containers/syncthing
+1ef944db  2021-12-05 11:14:51  carmel      home        /home/fcuny
+e58a2421  2021-12-06 04:02:44  nas         gitea       /data/containers/gitea
+907bb839  2021-12-06 04:02:50  nas         unifi       /data/containers/unifi
+050dcff3  2021-12-06 04:02:55  nas         grafana     /data/containers/grafana
+72092444  2021-12-06 04:03:00  nas         traefik     /data/containers/traefik
+d04b79bb  2021-12-06 04:03:03  nas         syncthing   /data/containers/syncthing
+2ef060ec  2021-12-06 11:36:51  carmel      home        /home/fcuny
+a3036320  2021-12-07 04:19:42  nas         gitea       /data/containers/gitea
+18af7ba5  2021-12-07 04:19:48  nas         unifi       /data/containers/unifi
+ba7adae4  2021-12-07 04:19:53  nas         grafana     /data/containers/grafana
+b71283de  2021-12-07 04:19:57  nas         traefik     /data/containers/traefik
+d1918837  2021-12-07 04:19:59  nas         syncthing   /data/containers/syncthing
+ec06c179  2021-12-07 17:24:07  carmel      home        /home/fcuny
+49722319  2021-12-08 04:11:10  nas         gitea       /data/containers/gitea
+b7cfa0d8  2021-12-08 04:11:18  nas         unifi       /data/containers/unifi
+64e98ec2  2021-12-08 04:11:25  nas         grafana     /data/containers/grafana
+d5f848fd  2021-12-08 04:11:30  nas         traefik     /data/containers/traefik
+ce58becc  2021-12-08 04:11:33  nas         syncthing   /data/containers/syncthing
+8342e5b7  2021-12-08 17:45:07  carmel      home        /home/fcuny
+93584f9e  2021-12-09 04:06:27  nas         gitea       /data/containers/gitea
+fb0e6073  2021-12-09 04:06:33  nas         unifi       /data/containers/unifi
+68d354c2  2021-12-09 04:06:39  nas         grafana     /data/containers/grafana
+73e199bd  2021-12-09 04:06:46  nas         traefik     /data/containers/traefik
+47e0e0a6  2021-12-09 04:06:49  nas         syncthing   /data/containers/syncthing
+9d7bcb97  2021-12-09 11:53:49  carmel      home        /home/fcuny
+c2130706  2021-12-10 04:00:56  nas         gitea       /data/containers/gitea
+29af7e4f  2021-12-10 04:01:03  nas         unifi       /data/containers/unifi
+393b006b  2021-12-10 04:01:08  nas         grafana     /data/containers/grafana
+433a00d1  2021-12-10 04:01:13  nas         traefik     /data/containers/traefik
+d4949919  2021-12-10 04:01:18  nas         syncthing   /data/containers/syncthing
+ce2a8a73  2021-12-10 12:10:49  carmel      home        /home/fcuny
+c8d56977  2021-12-11 04:11:20  nas         gitea       /data/containers/gitea
+40f3c6d8  2021-12-11 04:11:25  nas         unifi       /data/containers/unifi
+f24178f5  2021-12-11 04:11:30  nas         grafana     /data/containers/grafana
+3ca4553f  2021-12-11 04:11:33  nas         traefik     /data/containers/traefik
+ca41fe42  2021-12-11 04:11:35  nas         syncthing   /data/containers/syncthing
+b2643ef9  2021-12-11 12:40:49  carmel      home        /home/fcuny
+50cb9254  2021-12-12 04:10:34  nas         gitea       /data/containers/gitea
+85de9005  2021-12-12 04:10:40  nas         unifi       /data/containers/unifi
+0fd36196  2021-12-12 04:10:46  nas         grafana     /data/containers/grafana
+bd8f14dd  2021-12-12 04:10:50  nas         traefik     /data/containers/traefik
+ee0735e3  2021-12-12 04:10:53  nas         syncthing   /data/containers/syncthing
+---------------------------------------------------------------------------------
+148 snapshots
+#+end_example
+
+** How to configure a backup
+All daily backups are added to the [[file:~/workspace/infrastructure/puppet/site-modules/backup/files/etc/systemd/system/backups.service][unit file]]. Each backup needs a tag (to make it easier to filter/search).
+
+This will run once a day. The backups will be stored in =/data/backups= and then be exported to GCS.
+** How to restore the backup
+First, this is the [[https://restic.readthedocs.io/en/latest/050_restore.html][documentation]] to read. Here's an example:
+#+begin_src sh
+$ sudo restic -r /data/backups/ -p /etc/restic/password restore 8dbaaf98 --target /tmp/this-is-a-test
+repository a37cfab5 opened successfully, password is correct
+restoring <Snapshot 8dbaaf98 of [/data/containers/traefik] at 2021-08-14 06:05:49.547829076 -0700 PDT by restic@nas> to /tmp/this-is-a-test
+$ sudo ls -l /tmp/this-is-a-test/data/containers/traefik
+total 4
+drwxrwxr-x 2 root root 4096 Nov  6  2020 config
+#+end_src
+* rclone / GCP
+Backups are exported off-site to some GCS buckets, using [[https://rclone.org/][rclone]].
+
+=restic= snapshots are exported to this [[https://console.cloud.google.com/storage/browser/fcuny-restic;tab=objects?forceOnBucketsSortingFiltering=false&project=fcuny-backups][bucket]], while our music collection is stored in this [[https://console.cloud.google.com/storage/browser/fcuny-music;tab=objects?forceOnBucketsSortingFiltering=false&project=fcuny-backups&prefix=&forceOnObjectsSortingFiltering=false][one]].
+
+The timer for the backup can be found in [[file:~/workspace/infrastructure/puppet/site-modules/backup/manifests/service.pp][service.pp]]. All the configuration bits for =rclone= are parts of the unit file for the backups.
diff --git a/docs/desktop.org b/docs/desktop.org
new file mode 100644
index 0000000..a52fc53
--- /dev/null
+++ b/docs/desktop.org
@@ -0,0 +1,19 @@
+* Next build
+** Requirements
+- Future proof (PCIe 5, DDR5)
+- Re-use the nr200p case
+- 2 NVMe drive would be nice
+- not have to use a GPU would be nice
+** Hardware selection
+
+| component   | model                                         | price | note |
+|-------------+-----------------------------------------------+-------+------|
+| CPU         | Intel Core i7-12700K                          |   380 |      |
+| CPU cooler  | Noctua NH-U9S chromax.black                   |     0 |      |
+| motherboard | Asus ROG STRIX B660-I GAMING                  |   220 |      |
+| memory      | Corsair Vengeance 32 GB (2 x 16 GB) DDR5-5200 |   309 |      |
+| boot drive  | Western Digital Black SN850                   |   160 |      |
+| case        | nr200p                                        |     0 |      |
+|-------------+-----------------------------------------------+-------+------|
+|             |                                               |  1069 |      |
+#+TBLFM: @8$3=vsum(@2..@-1)
diff --git a/docs/gcloud.org b/docs/gcloud.org
new file mode 100644
index 0000000..95e7531
--- /dev/null
+++ b/docs/gcloud.org
@@ -0,0 +1,21 @@
+#+TITLE: Gcloud
+
+* Initial setup
+First we need to create a service account, with:
+#+begin_src sh
+gcloud --project fcuny-homelab iam service-accounts create world-nix
+#+end_src
+
+Next we need to bind the new policy:
+#+begin_src sh
+gcloud projects add-iam-policy-binding fcuny-homelab --member="serviceAccount:world-nix@fcuny-homelab.iam.gserviceaccount.com" --role="roles/accessapproval.configEditor"
+#+end_src
+
+Note: I had to add DNS administrator in the console, I don't know what I need to add to this command.
+
+Finally we need the key:
+#+begin_src sh
+gcloud iam service-accounts keys create world-nix.json --iam-account=world-nix@fcuny-homelab.iam.gserviceaccount.com
+#+end_src
+
+This will create a file name =world-nix.json=. It's best to encrypt it with =age= and move it under the =secrets= directory for a host.
diff --git a/docs/gnome-keyring.org b/docs/gnome-keyring.org
new file mode 100644
index 0000000..35480e5
--- /dev/null
+++ b/docs/gnome-keyring.org
@@ -0,0 +1,66 @@
+#+TITLE: gnome-keyring-daemon setup
+
+It seems that there's a lot of hate for the =gnome-keyring-daemon= online, so I might be missing something. But on my end, it seems to simplifies a few things and there are no more prompt when I log into my session about various keys.
+
+* gnome-keyring-daemon
+It looks like we need to install a few packages:
+- =gnome-keyring=
+- =seahorse=
+
+There is a [[file:~/workspace/linux-desktop/systemd/gnome-keyring.service][unit]] that ensure it starts when we log in a session.
+
+Using =seahorse=, we can see which secrets / keys are managed by it.
+
+Additional documentations:
+- [[https://wiki.archlinux.org/title/GNOME/Keyring][arch wiki]]
+* PGP
+** Unlocking the key
+The keyring daemon unlocks the key for us.
+** Backup the key
+To backup the key, do
+#+begin_src sh
+gpg --export-secret-keys --armor franck@fcuny.net > ~/documents/backups/gpg-secret-key-backup.asc
+#+end_src
+
+To see the list of keys:
+#+begin_src sh :results verbatim raw
+gpg --list-secret-keys
+#+end_src
+
+#+RESULTS:
+/home/fcuny/.gnupg/pubring.kbx
+------------------------------
+sec   rsa4096 2021-09-13 [SC]
+      23348B57F01D4234B5CFBA0923208AC01EB6EEA1
+uid           [ultimate] Franck Cuny <franck@fcuny.net>
+ssb   rsa4096 2021-09-13 [E]
+
+To export the trusted keys:
+#+begin_src sh
+gpg --export-ownertrust > ~/documents/backups/gpg-trusteddb-backup.txt
+#+end_src
+
+** Restore the key
+To restore the key from the backup
+#+begin_src sh
+gpg --import ~/documents/backups/gpg-secret-key-backup.asc
+#+end_src
+
+To restore the trusted db:
+#+begin_src sh
+gpg --import-ownertrust < ~/documents/backups/gpg-trusteddb-backup.txt
+#+end_src
+
+If you don't import the trusted db you need to set your key as trusted
+#+begin_src
+gpg --edit-key franck@fcuny.net
+gpg> trust
+gpg> save
+#+end_src
+** Configuration for the agent
+In =$HOME/.gnupg/gpg-agent.conf=
+#+begin_src conf
+pinentry-program /usr/bin/pinentry-gnome3
+#+end_src
+* SSH
+As the keyring daemon manages our ssh key, all we need to do is to export =SSH_AUTH_SOCK= to where the socket started by the daemon is. This is done in [[file:~/workspace/linux-desktop/dotfiles/pam_environment][pam_environment]].
diff --git a/docs/install.org b/docs/install.org
new file mode 100644
index 0000000..40ba5a8
--- /dev/null
+++ b/docs/install.org
@@ -0,0 +1,153 @@
+#+TITLE: Installation
+#+AUTHOR: Franck Cuny
+#+EMAIL: franck@fcuny.net
+
+* Prepare the USB stick
+Download the most recent image from https://nixos.org/download.html then put it on a stick:
+#+begin_src sh
+sudo cp ~/downloads/nixos-minimal-21.11.336020.2128d0aa28e-x86_64-linux.iso /dev/sda
+#+end_src
+* Partitioning
+** For the workstation (desktop/laptop)
+All hosts have the same partitioning for the boot drive:
+- /boot partition for UEFI
+- / encrypted with btrfs
+- a 8GB swap
+
+If we assume the boot drive to be =nvme0n1=, we will do the following:
+#+begin_src sh
+parted /dev/nvme0n1 -- mklabel gpt
+parted /dev/nvme0n1 -- mkpart primary 512MiB -8GiB
+parted /dev/nvme0n1 -- mkpart primary linux-swap -8GiB 100%
+parted /dev/nvme0n1 -- mkpart ESP fat32 1MiB 512MiB
+parted /dev/nvme0n1 -- set 3 esp on
+#+end_src
+
+Running =lsbkl= should give the following output:
+#+begin_src sh
+[root@nixos:~]# lsblk
+NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
+loop0         7:0    0   709M  1 loop /nix/.ro-store
+sda           8:0    1  29.9G  0 disk
+├─sda1        8:1    1   784M  0 part /iso
+└─sda2        8:2    1    37M  0 part
+nvme0n1     259:0    0 465.8G  0 disk
+├─nvme0n1p1 259:1    0 457.3G  0 part
+├─nvme0n1p2 259:2    0     8G  0 part
+└─nvme0n1p3 259:3    0   511M  0 part
+#+end_src
+
+Then we create the LUKS device:
+#+begin_src sh
+cryptsetup --verify-passphrase -v luksFormat /dev/nvme0n1p1
+cryptsetup open /dev/nvme0n1p1 system
+#+end_src
+
+We can create the partition for the boot drive and activate the swap:
+#+begin_src sh
+mkswap -L swap /dev/nvme0n1p2
+swapon /dev/nvme0n1p2
+mkfs.fat -F 32 -n nixos-boot /dev/nvme0n1p3
+#+end_src
+#+begin_src sh
+mkfs.btrfs /dev/mapper/system
+
+mount -t btrfs /dev/mapper/system /mnt
+
+btrfs subvolume create /mnt/nixos
+btrfs subvolume create /mnt/home
+btrfs subvolume create /mnt/snapshots
+
+umount /mnt
+#+end_src
+
+Now we can re-mount the partitions with the proper options:
+#+begin_src sh
+mount -o subvol=nixos,compress=zstd,noatime,autodefrag /dev/mapper/system /mnt
+
+mkdir /mnt/{home,boot,.snapshots}
+
+mount -o subvol=home,compress=zstd,noatime,autodefrag /dev/mapper/system /mnt/home
+mount -o subvol=snapshots,compress=zstd,noatime /dev/mapper/system /mnt/.snapshots
+mount /dev/nvme0n1p3 /mnt/boot
+#+end_src
+
+Once the installation is completed:
+#+begin_src sh
+CUSTOMIZE_TIMESTAMP=$(date -u +%Y%m%dT%H%M%S)
+btrfs subvolume snapshot /mnt /mnt/.snapshots/$CUSTOMIZE_TIMESTAMP
+#+end_src
+** Partitions for the NAS
+Create the RAIDs:
+#+begin_src sh
+mdadm --create /dev/md/fast --level=mirror --raid-devices=2 /dev/sda /dev/sdb
+mdadm --create /dev/md/slow --level=mirror --raid-devices=2 /dev/sdc /dev/sde
+#+end_src
+
+Encrypt the RAIDs:
+#+begin_src sh
+cryptsetup --verify-passphrase -v luksFormat /dev/md/slow
+cryptsetup --verify-passphrase -v luksFormat /dev/md/fast
+#+end_src
+
+Then open them:
+#+begin_src sh
+cryptsetup open /dev/md/fast raid-fast
+cryptsetup open /dev/md/slow raid-slow
+#+end_src
+
+Create the filesystem:
+#+begin_src sh
+mkfs.btrfs /dev/mapper/raid-fast
+mkfs.btrfs /dev/mapper/raid-slow
+#+end_src
+
+Then we can mount them to generate the host configuration
+#+begin_src sh
+btrfs subvolume create /mnt/media
+btrfs subvolume create /mnt/containers
+umount /mnt
+
+mount -t btrfs /dev/mapper/raid-slow /mnt/
+btrfs subvolume create /mnt/backups
+mkdir /mnt/data/{backups,containers,media}
+mount -o subvol=media,compress=zstd,noatime,autodefrag /dev/mapper/raid-fast /mnt/data/media
+mount -o subvol=media,compress=zstd,noatime,autodefrag /dev/mapper/raid-fast /mnt/data/media
+mount -o subvol=containers,compress=zstd,noatime,autodefrag /dev/mapper/raid-fast /mnt/data/containers
+mount -o subvol=backups,compress=zstd,noatime,autodefrag /dev/mapper/raid-slow /mnt/data/backups
+#+end_src
+* Installing the system
+Let's add git and nixFlakes:
+#+begin_src sh
+nix-shell -p git nixFlakes
+#+end_src
+
+#+begin_src sh
+nixos-generate-config --root /mnt
+mkdir /mnt/root
+git clone https://git.fcuny.net/fcuny/world.git /mnt/root/world
+mkdir /mnt/root/world/hosts/<host name>
+cp /mnt/etc/nixos/hardware-configuration.nix /mnt/root/world/hosts/<host name>/
+cp /mnt/root/world/hosts/aptos/default.nix /mnt/root/world/hosts/<host name>/
+vim /mnt/root/world/hosts/<host name>/default.nix
+cd /mnt/root/world
+git add hosts/tahoe
+cd /
+nixos-install --root /mnt --flake /mnt/root/world#<host name>
+#+end_src
+
+Create another snapshot
+#+begin_src sh
+CUSTOMIZE_TIMESTAMP=$(date -u +%Y%m%dT%H%M%S)
+btrfs subvolume snapshot /mnt /mnt/.snapshots/$CUSTOMIZE_TIMESTAMP
+#+end_src
+
+And a =reboot= should be enough.
+* home-manager initial install
+After a reboot, as root:
+#+begin_src sh
+nix-channel --add https://github.com/nix-community/home-manager/archive/release-21.11.tar.gz home-manager
+nix-channel --update
+nix-shell '<home-manager>' -A install
+home-manager build --flake .#fcuny@<host name>
+#+end_src
diff --git a/docs/tools.org b/docs/tools.org
new file mode 100644
index 0000000..8dfebe1
--- /dev/null
+++ b/docs/tools.org
@@ -0,0 +1,128 @@
+#+TITLE: Collection of recipes for various tools
+
+* syncthing
+** connection to the remote UI
+The web UI for syncthing is binded to localhost. To access the UI of a remote host, create a SSH tunnel:
+#+begin_src sh
+ssh -L 1235:localhost:8384 -N -f 192.168.0.106
+#+end_src
+* yt-dlp
+- use =--merge-output-format=mkv=
+- check what's the best audio and video for a video
+- prefer =mp4= for the audio over =webm=
+
+** List of supported formats
+#+begin_src sh :results verbatim
+yt-dlp --list-formats https://www.youtube.com/watch?v=igH-NgcuW2M
+#+end_src
+
+#+RESULTS:
+#+begin_example
+[youtube] igH-NgcuW2M: Downloading webpage
+[youtube] igH-NgcuW2M: Downloading android player API JSON
+[info] Available formats for igH-NgcuW2M:
+ID  EXT  RESOLUTION FPS |  FILESIZE    TBR PROTO | VCODEC        VBR ACODEC     ABR  ASR    MORE INFO
+--- ---- ---------- --- - ---------- ----- ----- - ----------- ----- --------- ---- ------- -----------------
+139 m4a  audio only     |  15.00MiB    47k https |                   mp4a.40.5  47k 22050Hz low, m4a_dash
+249 webm audio only     |  15.28MiB    48k https |                   opus       48k 48000Hz low, webm_dash
+250 webm audio only     |  19.58MiB    62k https |                   opus       62k 48000Hz low, webm_dash
+140 m4a  audio only     |  40.06MiB   127k https |                   mp4a.40.2 127k 44100Hz medium, m4a_dash
+251 webm audio only     |  39.20MiB   124k https |                   opus      124k 48000Hz medium, webm_dash
+17  3gp  176x144    12  |  24.81MiB    78k https | mp4v.20.3     78k mp4a.40.2   0k 22050Hz 144p
+160 mp4  256x144    12  |  34.44MiB   109k https | avc1.4d400c  109k                        144p, mp4_dash
+278 webm 256x144    12  |  28.61MiB    90k https | vp9           90k                        144p, webm_dash
+133 mp4  426x240    24  |  77.23MiB   244k https | avc1.4d4015  244k                        240p, mp4_dash
+242 webm 426x240    24  |  72.41MiB   229k https | vp9          229k                        240p, webm_dash
+134 mp4  640x360    24  |  178.23MiB  565k https | avc1.4d401e  565k                        360p, mp4_dash
+18  mp4  640x360    24  |  231.71MiB  734k https | avc1.42001E  734k mp4a.40.2   0k 44100Hz 360p
+243 webm 640x360    24  |  137.73MiB  436k https | vp9          436k                        360p, webm_dash
+135 mp4  854x480    24  |  329.98MiB 1046k https | avc1.4d401e 1046k                        480p, mp4_dash
+244 webm 854x480    24  |  244.94MiB  776k https | vp9          776k                        480p, webm_dash
+136 mp4  1280x720   24  |  638.05MiB 2023k https | avc1.4d401f 2023k                        720p, mp4_dash
+22  mp4  1280x720   24  |            2150k https | avc1.64001F 2150k mp4a.40.2   0k 44100Hz 720p
+247 webm 1280x720   24  |  490.14MiB 1554k https | vp9         1554k                        720p, webm_dash
+137 mp4  1920x1080  24  |  1.13GiB   3685k https | avc1.640028 3685k                        1080p, mp4_dash
+248 webm 1920x1080  24  |  893.45MiB 2833k https | vp9         2833k                        1080p, webm_dash
+#+end_example
+** Best audio and video
+#+begin_src sh
+yt-dlp -f 'bv*+ba' https://www.youtube.com/watch?v=igH-NgcuW2M -o '%(id)s.%(ext)s'
+#+end_src
+** Download a playlist
+Save into =channel_id/playlist_id= directory with the video added to an archive text file:
+#+begin_src sh
+yt-dlp -f 'bv*[height=1080]+ba' --download-archive videos.txt  https://www.youtube.com/playlist?list=PLlVlyGVtvuVnUjA4d6gHKCSrLAAm2n1e6 -o '%(channel_id)s/%(playlist_id)s/%(id)s.%(ext)s'
+#+end_src
+** Download a channel
+#+begin_src sh
+yt-dlp -f 'bv*[height=720]+ba' --download-archive videos.txt https://www.youtube.com/c/FootheFlowerhorn/videos -o '%(channel)s/%(title)s.%(ext)s'
+#+end_src
+* exiftool
+** Copy media based on the creation date
+#+begin_src sh
+exiftool -v -o . '-Directory<CreateDate' -d /data/photos/%Y/%Y-%m-%d/ .
+#+end_src
+** Move media based on the creation date
+#+begin_src sh
+exiftool -v '-Directory<CreateDate' -d /data/photos/%Y/%Y-%m-%d/ .
+#+end_src
+
+Alternatively, in case the creation date is incorrect:
+#+begin_src sh
+exiftool -v '-Directory<DateTimeOriginal' -d /data/photos/%Y/%Y-%m-%d/
+#+end_src
+** Move pdf to a directory
+To move papers (for example) using the title and date of creation to a specific destination:
+#+begin_src sh
+exiftool '-filename<${Title;}.%e' '-directory<CreateDate' -d ~/documents/papers/%Y/ .
+#+end_src
+** Edit metadata from a google takeout
+This [[https://github.com/kaytat/exiftool-scripts-for-takeout][repository]] as a few scripts for =exiftools= that are interesting. In case this repository were to disappear in the future, here is the script to update the metadata from the JSON files:
+#+begin_src sh :filename use_json.args
+# Fill in from Google's JSON
+
+# Look at all media files and ignore JSON
+--ext
+json
+
+# Recursive
+-r
+
+# Show processed filenames
+-v0
+
+# Check if the corresponding JSON exists
+-if
+(-e "${Directory}/${Filename}".".json")
+
+# Attempt to modify media only if the info doesn't already exist
+-if
+($Filetype eq "MP4" and not $quicktime:TrackCreateDate) or ($Filetype eq "MP4" and $quicktime:TrackCreateDate eq "0000:00:00 00:00:00") or ($Filetype eq "JPEG" and not $exif:DateTimeOriginal) or ($Filetype eq "PNG" and not $PNG:CreationTime)
+
+# Attempt to read in the JSON
+-tagsfromfile
+%d%F.json
+
+#
+# Write out the tags. Use ConvertUnixTime to try and convert the UTC timestamp
+# to a reasonable local EXIF string.
+#
+
+# EXIF for regular JPG photos
+-AllDates<${PhotoTakenTimeTimestamp;$_=ConvertUnixTime($_,1)}
+
+# PNG-specific
+-XMP-Exif:DateTimeOriginal<${PhotoTakenTimeTimestamp;$_=ConvertUnixTime($_,1)}
+-PNG:CreationTime<${PhotoTakenTimeTimestamp;$_=ConvertUnixTime($_,1)}
+
+# Quicktime / MP4. Assume that timestamp is in UTC.
+-QuickTime:TrackCreateDate<${PhotoTakenTimeTimestamp;$_=ConvertUnixTime($_,0)}
+-QuickTime:TrackModifyDate<${PhotoTakenTimeTimestamp;$_=ConvertUnixTime($_,0)}
+-QuickTime:MediaCreateDate<${PhotoTakenTimeTimestamp;$_=ConvertUnixTime($_,0)}
+-QuickTime:MediaModifyDate<${PhotoTakenTimeTimestamp;$_=ConvertUnixTime($_,0)}
+
+# Clobber everything
+-overwrite_original
+#+end_src
+
+and to run it: =exiftool -@ use_json.args <takeout_dir>=
diff --git a/docs/wireguard.org b/docs/wireguard.org
new file mode 100644
index 0000000..456205f
--- /dev/null
+++ b/docs/wireguard.org
@@ -0,0 +1,23 @@
+#+TITLE: Configuration for wireguard
+
+* Creating the keys
+Create a directory with the hostname under =secrets/network/=.
+
+We need a key for the host:
+#+begin_src sh
+(umask 0077; wg genkey > peer_A.key)
+#+end_src
+
+Next we create the public key:
+#+begin_src sh
+wg pubkey < peer_A.key > peer_A.pub
+#+end_src
+
+Now we need to add the private key to the list of secrets:
+#+begin_src sh
+nix run github:ryantm/agenix -- -e secrets/network/<host name>/wireguard_privatekey.age
+#+end_src
+
+Once this is done, update [[file:~/workspace/world/configs/wireguard.toml][wireguard.toml]] to add the new peer with the public key.
+
+Once this is completed, we can delete the files =peer_A.key= and =peer_A.pub=.
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..80b2615
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,232 @@
+{
+  "nodes": {
+    "agenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1652712410,
+        "narHash": "sha256-hMJ2TqLt0DleEnQFGUHK9sV2aAzJPU8pZeiZoqRozbE=",
+        "owner": "ryantm",
+        "repo": "agenix",
+        "rev": "7e5e58b98c3dcbf497543ff6f22591552ebfe65b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ryantm",
+        "repo": "agenix",
+        "type": "github"
+      }
+    },
+    "emacs-overlay": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1652700427,
+        "narHash": "sha256-Tzuqx7w3CIN/kZRE1hjMMsB3oC+39OoCUpgbw4it3RI=",
+        "owner": "nix-community",
+        "repo": "emacs-overlay",
+        "rev": "e9f4792aa79bccedb34b3fc04d1a36f1848b7b57",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "emacs-overlay",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1652557277,
+        "narHash": "sha256-jSes9DaIVMdmwBB78KkFUVrlDzawmD62vrUg0GS2500=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "12806d31a381e7cd169a6bac35590e7b36dc5fe5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "locked": {
+        "lastModified": 1652557277,
+        "narHash": "sha256-jSes9DaIVMdmwBB78KkFUVrlDzawmD62vrUg0GS2500=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "12806d31a381e7cd169a6bac35590e7b36dc5fe5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_3": {
+      "locked": {
+        "lastModified": 1644229661,
+        "narHash": "sha256-1YdnJAsNy69bpcjuoKdOYQX0YxZBiCYZo4Twxerqv7k=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3cecb5b042f7f209c56ffd8371b2711a290ec797",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1651519540,
+        "narHash": "sha256-3k6p8VsTwwRPQjE8rrMh+o2AZACZn/eeYJ7ivdQ/Iro=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "d93d56ab8c1c6aa575854a79b9d2f69d491db7d0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "release-21.11",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1652364845,
+        "narHash": "sha256-1pG2GR+z7IrUVGcMoTsH6nJ+ACMvBplo/Pyw4SXJDIE=",
+        "path": "/nix/store/6kajy5640i5vv6hp2y0ll14bhx4mvpmy-source",
+        "rev": "ee80943d4d1160f460e3d719222212dbfbc6a193",
+        "type": "path"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1652692103,
+        "narHash": "sha256-ygRLh8g0F/WkVCSfQcxMoVaaD45i6Ky+f+b4wCOazag=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "556ce9a40abde33738e6c9eac65f965a8be3b623",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1652710895,
+        "narHash": "sha256-wDEZUMu3mDuy1Cea5RyToqI3E8mhXINGl4agJ961M0U=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "fbbe8ed7e093b13ca02bad5cfae0bb7252ef94cc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "release-21.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1645655918,
+        "narHash": "sha256-ZfbEFRW7o237+A1P7eTKhXje435FCAoe0blj2n20Was=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "77a7a4197740213879b9a1d2e1788c6c8ade4274",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nur": {
+      "locked": {
+        "lastModified": 1652699429,
+        "narHash": "sha256-sWy8ftFgOb86aDFlJU8or+pE72DGeHFRNpvKxGJU0ug=",
+        "owner": "nix-community",
+        "repo": "NUR",
+        "rev": "8eba199b772313bd471b1d4ce7190f8e282ba4f2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "NUR",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-utils": "flake-utils_3",
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1649054408,
+        "narHash": "sha256-wz8AH7orqUE4Xog29WMTqOYBs0DMj2wFM8ulrTRVgz0=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "e5e7b3b542e7f4f96967966a943d7e1c07558042",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "agenix": "agenix",
+        "emacs-overlay": "emacs-overlay",
+        "flake-utils": "flake-utils_2",
+        "home-manager": "home-manager",
+        "nixpkgs": "nixpkgs_2",
+        "nixpkgs-unstable": "nixpkgs-unstable",
+        "nur": "nur",
+        "pre-commit-hooks": "pre-commit-hooks",
+        "utils": "utils"
+      }
+    },
+    "utils": {
+      "locked": {
+        "lastModified": 1652557277,
+        "narHash": "sha256-jSes9DaIVMdmwBB78KkFUVrlDzawmD62vrUg0GS2500=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "12806d31a381e7cd169a6bac35590e7b36dc5fe5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..fb00e4a
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,88 @@
+{
+  description = "personal NixOS configurations";
+
+  inputs = {
+    # Nixpkgs, NixOS's official repo
+    nixpkgs.url = "github:nixos/nixpkgs/release-21.11";
+
+    utils.url = "github:numtide/flake-utils";
+
+    # We use the unstable nixpkgs repo for some packages.
+    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+
+    emacs-overlay.url = "github:nix-community/emacs-overlay";
+
+    agenix = {
+      url = "github:ryantm/agenix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    nur.url = "github:nix-community/NUR";
+
+    pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
+    flake-utils.url = "github:numtide/flake-utils";
+
+    home-manager = {
+      url = "github:nix-community/home-manager/release-21.11";
+      # We want home-manager to use the same set of nixpkgs as our system.
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  # Output config, or config for NixOS system
+  outputs = { ... }@inputs:
+    let lib = import ./lib { inherit inputs; };
+    in {
+      nixosConfigurations = {
+        carmel = lib.mkSystem {
+          hostname = "carmel";
+          system = "x86_64-linux";
+        };
+        aptos = lib.mkSystem {
+          hostname = "aptos";
+          system = "x86_64-linux";
+        };
+        tahoe = lib.mkSystem {
+          hostname = "tahoe";
+          system = "x86_64-linux";
+        };
+      };
+    } // inputs.utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import inputs.nixpkgs { inherit system; };
+        home-manager = inputs.home-manager.defaultPackage."${system}";
+      in {
+        packages = pkgs // {
+          inherit home-manager;
+
+          # nix run .#dnsupdate
+          dnsupdate = pkgs.writers.writeBashBin "dnsupdate" ''
+            #!/usr/bin/env bash
+            export TS_API_KEY=$(pass api/api.tailscale.com)
+            export GOOGLE_APPLICATION_CREDENTIALS=/run/agenix/gcloud/world-nix
+            go run ./cmd/dnsupdate/
+          '';
+        };
+
+        checks = {
+          pre-commit-check = inputs.pre-commit-hooks.lib.${system}.run {
+            src = ./.;
+            hooks = {
+              nixpkgs-fmt.enable = true;
+              shellcheck.enable = true;
+            };
+          };
+        };
+        devShell = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            nixUnstable
+            nixfmt
+            rnix-lsp
+            home-manager
+            git
+            go
+            gopls
+          ];
+        };
+      });
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..567819c
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,8 @@
+module golang.fcuny.net/world
+
+go 1.16
+
+require (
+	google.golang.org/api v0.78.0
+	inet.af/netaddr v0.0.0-20211027220019-c74959edd3b6
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..d2af195
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,629 @@
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+inet.af/netaddr v0.0.0-20211027220019-c74959edd3b6/go.mod h1:y3MGhcFMlh0KZPMuXXow8mpjxxAk3yoDNsp4cQz54i8=
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diff --git a/home/beets/default.nix b/home/beets/default.nix
new file mode 100644
index 0000000..617ff62
--- /dev/null
+++ b/home/beets/default.nix
@@ -0,0 +1,46 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.beets;
+in {
+  options.my.home.beets = with lib; {
+    enable = mkEnableOption "beets configuration";
+    musicDirectory = mkOption {
+      type = types.str;
+      example = "/home/fcuny/media/music";
+      description = "path to the music directory";
+    };
+  };
+
+  config.programs.beets = lib.mkIf cfg.enable {
+    enable = true;
+    settings = {
+      directory = cfg.musicDirectory;
+      plugins =
+        "fromfilename discogs duplicates fetchart embedart badfiles lastgenre scrub";
+      paths = {
+        default = "$albumartist/$album%aunique{}/$track $title";
+        singleton = "Singles/$artist/$title";
+        comp = "Compilations/$album%aunique{}/$track - $title";
+        "albumtype:soundtrack" = "Soundtracks/$album ($year)/$track $title";
+      };
+      import = {
+        copy = true;
+        move = true;
+      };
+      va_name = "Various Artists";
+      embedart = { ifempty = true; };
+
+      lastgenre = {
+        auto = false;
+        canonical = true;
+        fallback = "unknown";
+        force = true;
+        prefer_specific = true;
+      };
+
+      fetchart = {
+        cautious = true;
+        sources = "filesystem coverart itunes amazon lastfm wikipedia";
+      };
+    };
+  };
+}
diff --git a/home/bluetooth/default.nix b/home/bluetooth/default.nix
new file mode 100644
index 0000000..51ecc4a
--- /dev/null
+++ b/home/bluetooth/default.nix
@@ -0,0 +1,10 @@
+{ config, lib, ... }:
+let cfg = config.my.home.bluetooth;
+in {
+  options.my.home.bluetooth = with lib; {
+    enable = mkEnableOption "bluetooth configuration";
+  };
+
+  config =
+    lib.mkIf cfg.enable { services.blueman-applet = { enable = true; }; };
+}
diff --git a/home/default.nix b/home/default.nix
new file mode 100644
index 0000000..485cc34
--- /dev/null
+++ b/home/default.nix
@@ -0,0 +1,43 @@
+{ ... }:
+
+{
+  imports = [
+    ./beets
+    ./bluetooth
+    ./direnv
+    ./documentation
+    ./drone-cli
+    ./element
+    ./emacs
+    ./eog
+    ./evince
+    ./feh
+    ./firefox
+    ./fish
+    ./flac
+    ./gcloud
+    ./git
+    ./go
+    ./gpg
+    ./gtk
+    ./mail
+    ./mpv
+    ./packages
+    ./pass
+    ./pcmanfm
+    ./python
+    ./scanner
+    ./scripts
+    ./seahorse
+    ./ssh
+    ./sublime-music
+    ./terminal
+    ./tmux
+    ./transmission-remote
+    ./vlc
+    ./wm
+    ./xdg
+    ./yt-dlp
+    ./zsh
+  ];
+}
diff --git a/home/direnv/default.nix b/home/direnv/default.nix
new file mode 100644
index 0000000..89d0535
--- /dev/null
+++ b/home/direnv/default.nix
@@ -0,0 +1,28 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.home.direnv;
+  fishEnabled = config.my.home.fish.enable;
+in {
+  options.my.home.direnv = with lib; {
+    enable = mkEnableOption "direnv configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.direnv = {
+      enable = true;
+      nix-direnv = {
+        enable = true;
+        enableFlakes = true;
+      };
+    };
+
+    programs.fish.interactiveShellInit = lib.mkIf fishEnabled (
+      # Using mkAfter to make it more likely to appear after other
+      # manipulations of the prompt.
+      lib.mkAfter ''
+        ${pkgs.direnv}/bin/direnv hook fish | source
+      '');
+
+    home.sessionVariables = { DIRENV_DEFAULT_FLAKE = "nixpkgs"; };
+  };
+}
diff --git a/home/documentation/default.nix b/home/documentation/default.nix
new file mode 100644
index 0000000..047239e
--- /dev/null
+++ b/home/documentation/default.nix
@@ -0,0 +1,9 @@
+{ config, lib, ... }: {
+  # Add documentation for user packages
+  config.programs.man = {
+    enable = true;
+    generateCaches = true; # Enables the use of `apropos` etc...
+  };
+
+  config.programs.info.enable = true;
+}
diff --git a/home/drone-cli/default.nix b/home/drone-cli/default.nix
new file mode 100644
index 0000000..9eeb2e1
--- /dev/null
+++ b/home/drone-cli/default.nix
@@ -0,0 +1,11 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.drone-cli;
+in {
+  options.my.home.drone-cli = with lib; {
+    enable = mkEnableOption "drone-cli configuration";
+  };
+  config = lib.mkIf cfg.enable {
+    home.packages = with pkgs; [ drone-cli ];
+    home.sessionVariables = { DRONE_SERVER = "https://drone.fcuny.xyz/"; };
+  };
+}
diff --git a/home/element/default.nix b/home/element/default.nix
new file mode 100644
index 0000000..3fcb50e
--- /dev/null
+++ b/home/element/default.nix
@@ -0,0 +1,10 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.element;
+in {
+  options.my.home.element = with lib; {
+    enable = mkEnableOption "element configuration";
+  };
+
+  config =
+    lib.mkIf cfg.enable { home.packages = with pkgs; [ element-desktop ]; };
+}
diff --git a/home/emacs/default.nix b/home/emacs/default.nix
new file mode 100644
index 0000000..faac80d
--- /dev/null
+++ b/home/emacs/default.nix
@@ -0,0 +1,20 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.emacs;
+in {
+  options.my.home.emacs = with lib; {
+    enable = mkEnableOption "emacs configuration";
+  };
+
+  config.home = lib.mkIf cfg.enable {
+    packages = with pkgs; [
+      emacsPgtkNativeComp
+      # see https://github.com/hlissner/doom-emacs/issues/4138
+      (aspellWithDicts (dicts: with dicts; [ en en-computers en-science ]))
+    ];
+
+    sessionVariables = {
+      EDITOR = "emacsclient -c -a=";
+      VISUAL = "emacsclient -c -a=";
+    };
+  };
+}
diff --git a/home/eog/default.nix b/home/eog/default.nix
new file mode 100644
index 0000000..c7f784b
--- /dev/null
+++ b/home/eog/default.nix
@@ -0,0 +1,9 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.eog;
+in {
+  options.my.home.eog = with lib; {
+    enable = mkEnableOption "eog configuration";
+  };
+
+  config.home.packages = with pkgs; lib.mkIf cfg.enable ([ gnome3.eog ]);
+}
diff --git a/home/evince/default.nix b/home/evince/default.nix
new file mode 100644
index 0000000..16abc57
--- /dev/null
+++ b/home/evince/default.nix
@@ -0,0 +1,9 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.evince;
+in {
+  options.my.home.evince = with lib; {
+    enable = mkEnableOption "evince configuration";
+  };
+
+  config.home.packages = with pkgs; lib.mkIf cfg.enable ([ gnome3.evince ]);
+}
diff --git a/home/feh/default.nix b/home/feh/default.nix
new file mode 100644
index 0000000..0032252
--- /dev/null
+++ b/home/feh/default.nix
@@ -0,0 +1,8 @@
+{ config, lib, ... }:
+let cfg = config.my.home.feh;
+in {
+  options.my.home.feh = with lib; {
+    enable = mkEnableOption "feh configuration";
+  };
+  config.programs.feh = lib.mkIf cfg.enable { enable = true; };
+}
diff --git a/home/firefox/default.nix b/home/firefox/default.nix
new file mode 100644
index 0000000..7b6485d
--- /dev/null
+++ b/home/firefox/default.nix
@@ -0,0 +1,61 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.firefox;
+in {
+  options.my.home.firefox = with lib; {
+    enable = mkEnableOption "firefox configuration";
+  };
+
+  config.programs.firefox = lib.mkIf cfg.enable {
+    enable = true;
+    extensions = with pkgs.nur.repos.rycee.firefox-addons; [
+      https-everywhere
+      pkgs.nur.repos.rycee.firefox-addons."1password-x-password-manager"
+      consent-o-matic
+      refined-github
+      sponsorblock
+      ublock-origin
+    ];
+    profiles = {
+      default = {
+        settings = {
+          ## nix handle updates
+          "app.update.auto" = false;
+          "browser.bookmarks.showMobileBookmarks" = false;
+          "browser.compactmode.show" = true;
+          "browser.contentblocking.category" = "strict";
+          "browser.search.countryCode" = "US";
+          "browser.search.defaultenginename" = "DuckDuckGo";
+          "browser.search.isUS" = true;
+          "browser.search.region" = "US";
+          "browser.search.selectedEngine" = "DuckDuckGo";
+          ## don't check if it's the default browser
+          "browser.shell.checkDefaultBrowser" = false;
+          "browser.startup.homepage" = "https://duckduckgo.com";
+          "browser.urlbar.placeholderName" = "DuckDuckGo";
+          ## keep this with ff 96
+          "media.ffmpeg.vaapi.enabled" = true;
+          ## remove on ff 96
+          "media.ffvpx.enabled" = false;
+          ## remove on ff 96
+          "media.navigator.mediadatadecoder_vpx_enabled" = true;
+          "media.peerconnection.enabled" = true;
+          ## keep this with ff 96
+          "media.rdd-ffmpeg.enabled" = true;
+          ## remove on ff 96
+          "media.rdd-vpx.enabled" = false;
+          ## Block third-party cookies
+          "network.cookie.cookieBehavior" = 1;
+          "privacy.donottrackheader.enabled" = true;
+          "privacy.trackingprotection.enabled" = true;
+          "privacy.trackingprotection.socialtracking.enabled" = true;
+        };
+
+        userChrome = ''
+          #TabsToolbar {
+          visibility: collapse;
+          }
+        '';
+      };
+    };
+  };
+}
diff --git a/home/fish/default.nix b/home/fish/default.nix
new file mode 100644
index 0000000..85ff30d
--- /dev/null
+++ b/home/fish/default.nix
@@ -0,0 +1,29 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.home.fish;
+  swayEnabled = config.my.home.wm.windowManager == "sway";
+in {
+  options.my.home.fish = with lib; {
+    enable = mkEnableOption "fish configuration";
+  };
+  config.programs.fish = lib.mkIf cfg.enable {
+    enable = true;
+    interactiveShellInit = ''
+      set fish_greeting
+
+      # Tmux on terminal start, unless we're in a SSH connection
+      if status is-interactive
+        if test -z "$SSH_CONNECTION"
+          if not tmux has-session 2>/dev/null; or test -z "$TMUX"
+            exec tmux new-session -A -s 0
+          end
+        end
+      end
+    '';
+    loginShellInit = lib.mkIf swayEnabled ''
+      if test -z "$DISPLAY"; and test (tty) = "/dev/tty1"
+        exec sway
+      end
+    '';
+  };
+}
diff --git a/home/flac/default.nix b/home/flac/default.nix
new file mode 100644
index 0000000..137d353
--- /dev/null
+++ b/home/flac/default.nix
@@ -0,0 +1,17 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.flac;
+in {
+  options.my.home.flac = with lib; {
+    enable = mkEnableOption "flac configuration";
+  };
+
+  config.home.packages = with pkgs;
+    lib.mkIf cfg.enable ([
+      flac
+      abcde
+      (pkgs.writers.writeDashBin "rip-flac" ''
+        cd ~/import
+        ${pkgs.abcde}/bin/abcde -Vx -G -a "cddb,read,encode,tag,move,clean" -o flac
+      '')
+    ]);
+}
diff --git a/home/gcloud/default.nix b/home/gcloud/default.nix
new file mode 100644
index 0000000..0f6262b
--- /dev/null
+++ b/home/gcloud/default.nix
@@ -0,0 +1,10 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.gcloud;
+in {
+  options.my.home.gcloud = with lib; {
+    enable = mkEnableOption "google cloud sdk";
+  };
+
+  config =
+    lib.mkIf cfg.enable { home.packages = with pkgs; [ google-cloud-sdk ]; };
+}
diff --git a/home/git/commit.template b/home/git/commit.template
new file mode 100644
index 0000000..01ab956
--- /dev/null
+++ b/home/git/commit.template
@@ -0,0 +1,22 @@
+# (If applied, this commit will...) <type>: <subject>
+
+# Explain why this change is being made
+
+# --- COMMIT END ---
+# Remember to
+#    Use the imperative mood, present tense: `change' not `changed' nor `changes'
+#    Do not end the subject line with a period
+#    Use the body to explain what and why vs. how
+#    Can use multiple lines with "-" for bullet points in body
+
+# Suggested types:
+# build: Changes that affect the build system or external dependencies
+# ci:    Changes to CI configuration files and scripts
+# docs:  Documentation only changes
+# feat:  A new feature
+# fix:   A bug fix
+# perf:  A code change that improves performance
+# ref:   A code change that neither fixes a bug nor adds a feature (refactor)
+# style: Changes that do not affect the meaning of the code
+# tests: Adding missing tests or correcting existing tests
+# meta:  Some meta information in the repo changes
diff --git a/home/git/default.nix b/home/git/default.nix
new file mode 100644
index 0000000..3dc2dd0
--- /dev/null
+++ b/home/git/default.nix
@@ -0,0 +1,55 @@
+{ lib, config, ... }:
+
+let cfg = config.my.home.git;
+in {
+  options.my.home.git = with lib; {
+    enable = mkEnableOption "git configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.git = {
+      enable = true;
+      aliases = {
+        s = "status --short --branch";
+        amend = "commit --amend --no-edit";
+      };
+      extraConfig = {
+        core.whitespace = "trailing-space,space-before-tab";
+        color.ui = "true";
+        push.default = "simple";
+        init.defaultBranch = "main";
+        branch.autosetuprebase = "remote";
+        branch.sort = "authordate";
+        commit.template = "${config.xdg.dataHome}/git/commit.template";
+      };
+      userName = "Franck Cuny";
+      userEmail = "franck@fcuny.net";
+      extraConfig = {
+        "credential \"https://github.com\"" = { username = "fcuny"; };
+        "credential \"https://git.fcuny.net\"" = { username = "fcuny"; };
+      };
+      ignores = [
+        "*.elc"
+        "*.iml"
+        "*.o"
+        "*.pyc"
+        "*.pyo"
+        "*pyc"
+        "*~"
+        ".DS_Store"
+        ".\\#"
+        ".dir-locals.el"
+        ".direnv/*"
+        ".idea"
+        ".projectile"
+        ".pytest_cache/"
+        "/env/*"
+        "Icon"
+        "TAGS"
+        "\\#*\\#"
+        "tags"
+      ];
+    };
+    xdg.dataFile."git/commit.template" = { source = ./commit.template; };
+  };
+}
diff --git a/home/go/default.nix b/home/go/default.nix
new file mode 100644
index 0000000..24748d0
--- /dev/null
+++ b/home/go/default.nix
@@ -0,0 +1,17 @@
+{ lib, config, ... }:
+let cfg = config.my.home.go;
+in {
+  options.my.home.go = with lib; {
+    enable = mkEnableOption "go configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.go = {
+      enable = true;
+      goPath = ".local/share/pkg.go";
+      goBin = ".local/bin.go";
+      goPrivate = [ "git.fcuny.net" "golang.fcuny.net" ];
+    };
+    home.sessionPath = [ config.home.sessionVariables.GOBIN ];
+  };
+}
diff --git a/home/gpg/default.nix b/home/gpg/default.nix
new file mode 100644
index 0000000..d96c3aa
--- /dev/null
+++ b/home/gpg/default.nix
@@ -0,0 +1,33 @@
+{ config, lib, ... }:
+let cfg = config.my.home.gpg;
+in {
+  options.my.home.gpg = with lib; {
+    enable = mkEnableOption "gpg configuration";
+    pinentry = mkOption {
+      type = types.str;
+      default = "tty";
+      example = "gnome3";
+      description = "Which pinentry interface to use";
+    };
+    defaultKey = mkOption {
+      type = types.str;
+      default = null;
+      description = "Default GPG key";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.gpg = {
+      enable = true;
+      settings = { default-key = cfg.defaultKey; };
+    };
+    services.gpg-agent = {
+      enable = true;
+      enableSshSupport = true; # One agent to rule them all
+      pinentryFlavor = cfg.pinentry;
+      extraConfig = ''
+        allow-loopback-pinentry
+      '';
+    };
+  };
+}
diff --git a/home/gtk/default.nix b/home/gtk/default.nix
new file mode 100644
index 0000000..6e528b2
--- /dev/null
+++ b/home/gtk/default.nix
@@ -0,0 +1,47 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.gtk;
+in {
+  options.my.home.gtk = with lib; {
+    enable = mkEnableOption "GTK configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    gtk = {
+      enable = true;
+      font = {
+        package = pkgs.source-sans-pro;
+        name = "Source Sans Pro";
+      };
+      iconTheme = {
+        package = pkgs.gnome3.adwaita-icon-theme;
+        name = "Adwaita";
+      };
+      theme = {
+        package = pkgs.gnome.gnome-themes-extra;
+        name = "Adwaita";
+      };
+      gtk2 = {
+        extraConfig = ''
+          gtk-xft-antialias = 1
+          gtk-xft-hinting = 1
+          gtk-xft-hintstyle = "hintslight"
+          gtk-cursor-theme-size = cursorSize
+        '';
+      };
+
+      gtk3 = {
+        extraConfig = {
+          gtk-xft-antialias = 1;
+          gtk-xft-hinting = 1;
+          gtk-xft-hintstyle = "hintslight";
+        };
+      };
+    };
+
+    # environment = {
+    #   pathsToLink = [ "/libexec" ];
+    #   homeBinInPath = true;
+    #   localBinInPath = true;
+    # };
+  };
+}
diff --git a/home/mail/accounts/default.nix b/home/mail/accounts/default.nix
new file mode 100644
index 0000000..1bc1c37
--- /dev/null
+++ b/home/mail/accounts/default.nix
@@ -0,0 +1,71 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.mail;
+in {
+  config = lib.mkIf cfg.enable {
+    accounts.email = {
+      accounts = {
+        Fastmail = rec {
+          primary = true;
+          address = "franck@fcuny.net";
+          userName = address;
+          realName = "Franck Cuny";
+          aliases = [ "franck.cuny@gmail.com" ];
+          passwordCommand = "pass email/imap.fastmail.com";
+          imap.host = "imap.fastmail.com";
+          mbsync = {
+            enable = true;
+            create = "maildir";
+            expunge = "both";
+            extraConfig.channel.CopyArrivalDate = "yes";
+          };
+          notmuch.enable = true;
+        };
+      };
+    };
+
+    programs.mbsync.enable = true;
+
+    programs.afew = {
+      enable = true;
+      extraConfig = ''
+        [SpamFilter]
+        [KillThreadsFilter]
+        [ArchiveSentMailsFilter]
+        [InboxFilter]
+      '';
+    };
+
+    programs.notmuch = {
+      enable = true;
+      maildir.synchronizeFlags = true;
+      new.tags = [ "unread" "new" ];
+      new.ignore = [ "Trash" ];
+      search.excludeTags = [ "spam" "deleted" ];
+      hooks = {
+        postNew = "${config.home.profileDirectory}/bin/afew -v --tag --new";
+      };
+    };
+
+    systemd.user.services.mbsync = {
+      Unit = { Description = "mbsync synchronization"; };
+      Service = {
+        Type = "oneshot";
+        Environment = [
+          "PASSWORD_STORE_DIR=${config.programs.password-store.settings.PASSWORD_STORE_DIR}"
+          "NOTMUCH_CONFIG=${config.xdg.configHome}/notmuch/notmuchrc"
+        ];
+        ExecStart = "${pkgs.isync}/bin/mbsync -a";
+        ExecStartPost = "${pkgs.notmuch}/bin/notmuch new --quiet";
+      };
+    };
+
+    systemd.user.timers.mbsync = {
+      Unit = { Description = "mbsync synchronization"; };
+      Timer = {
+        OnBootSec = "30";
+        OnUnitActiveSec = "5m";
+      };
+      Install = { WantedBy = [ "timers.target" ]; };
+    };
+  };
+}
diff --git a/home/mail/default.nix b/home/mail/default.nix
new file mode 100644
index 0000000..4f36e87
--- /dev/null
+++ b/home/mail/default.nix
@@ -0,0 +1,11 @@
+{ config, lib, ... }:
+let
+  cfg = config.my.home.mail;
+  mkRelatedOption = desc: lib.mkEnableOption desc // { default = cfg.enable; };
+in {
+  imports = [ ./accounts ];
+  options.my.home.mail = with lib; {
+    enable = mkEnableOption "email configuration";
+  };
+  config = { accounts.email = { maildirBasePath = ".mail"; }; };
+}
diff --git a/home/mpv/default.nix b/home/mpv/default.nix
new file mode 100644
index 0000000..b6c2c60
--- /dev/null
+++ b/home/mpv/default.nix
@@ -0,0 +1,20 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.mpv;
+in {
+  options.my.home.mpv = with lib; {
+    enable = mkEnableOption "mpv configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.mpv = {
+      enable = true;
+      config = {
+        sub-auto = "fuzzy";
+        vo = "gpu";
+        hwdec = "auto-safe";
+        gpu-context = "wayland";
+      };
+      scripts = lib.attrVals [ "sponsorblock" ] pkgs.mpvScripts;
+    };
+  };
+}
diff --git a/home/packages/default.nix b/home/packages/default.nix
new file mode 100644
index 0000000..806ce31
--- /dev/null
+++ b/home/packages/default.nix
@@ -0,0 +1,18 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.packages;
+in {
+  options.my.home.packages = with lib; {
+    enable = mkEnableOption "user packages";
+    additionalPackages = mkOption {
+      type = with types; listOf package;
+      default = [ ];
+      example = literalExample ''
+        with pkgs; [
+          pavucontrol
+        ]
+      '';
+    };
+  };
+  config.home.packages = with pkgs;
+    lib.mkIf cfg.enable ([ util-linux jq ripgrep ] ++ cfg.additionalPackages);
+}
diff --git a/home/pass/default.nix b/home/pass/default.nix
new file mode 100644
index 0000000..3ea7892
--- /dev/null
+++ b/home/pass/default.nix
@@ -0,0 +1,40 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.pass;
+in {
+  options.my.home.pass = with lib; {
+    enable = mkEnableOption "pass configuration";
+  };
+  config = lib.mkIf cfg.enable {
+    programs.password-store = {
+      enable = true;
+      settings = {
+        PASSWORD_STORE_DIR = "${config.xdg.dataHome}/password-store";
+        PASSWORD_STORE_GENERATED_LENGTH = "30";
+        PASSWORD_STORE_CHARACTER_SET = "a-zA-Z0-9~!@#$%^&*()-_=+[]{};:,.<>?";
+        PASSWORD_STORE_KEY = config.programs.gpg.settings.default-key;
+      };
+    };
+
+    programs.git = {
+      signing = {
+        key = config.programs.gpg.settings.default-key;
+        signByDefault = true;
+      };
+      extraConfig = {
+        credential = {
+          helper = "${pkgs.gitAndTools.pass-git-helper}/bin/pass-git-helper";
+          useHttpPath = true;
+        };
+      };
+    };
+
+    xdg.configFile."pass-git-helper/git-pass-mapping.ini" = {
+      source = ./git-pass-mapping.ini;
+    };
+
+    services.password-store-sync.enable = true;
+
+    # Ensure the password store things are in the systemd session
+    systemd.user.sessionVariables = config.programs.password-store.settings;
+  };
+}
diff --git a/home/pass/git-pass-mapping.ini b/home/pass/git-pass-mapping.ini
new file mode 100644
index 0000000..5c5177b
--- /dev/null
+++ b/home/pass/git-pass-mapping.ini
@@ -0,0 +1,9 @@
+[DEFAULT]
+line_username=1
+skip_username=10
+
+[github.com/*]
+target=git/github.com
+
+[git.fcuny.net*]
+target=git/git.fcuny.net
diff --git a/home/pcmanfm/default.nix b/home/pcmanfm/default.nix
new file mode 100644
index 0000000..cca8f9a
--- /dev/null
+++ b/home/pcmanfm/default.nix
@@ -0,0 +1,9 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.pcmanfm;
+in {
+  options.my.home.pcmanfm = with lib; {
+    enable = mkEnableOption "pcmanfm configuration";
+  };
+
+  config = lib.mkIf cfg.enable { home.packages = with pkgs; [ pcmanfm ]; };
+}
diff --git a/home/python/default.nix b/home/python/default.nix
new file mode 100644
index 0000000..b34f978
--- /dev/null
+++ b/home/python/default.nix
@@ -0,0 +1,9 @@
+{ config, pkgs, lib, ... }:
+let cfg = config.my.home.python;
+in {
+  options.my.home.python = with lib; {
+    enable = mkEnableOption "python configuration";
+  };
+
+  config.home.packages = with pkgs; lib.mkIf cfg.enable ([ python310 ]);
+}
diff --git a/home/scanner/default.nix b/home/scanner/default.nix
new file mode 100644
index 0000000..aa3da7c
--- /dev/null
+++ b/home/scanner/default.nix
@@ -0,0 +1,11 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.scanner;
+in {
+  options.my.home.scanner = with lib; {
+    enable = mkEnableOption "scanner configuration";
+  };
+  config = lib.mkIf cfg.enable {
+    home.packages = with pkgs; [ tesseract imagemagick exiftool sane-airscan ];
+  };
+}
+
diff --git a/home/scripts/default.nix b/home/scripts/default.nix
new file mode 100644
index 0000000..bc19e44
--- /dev/null
+++ b/home/scripts/default.nix
@@ -0,0 +1,5 @@
+{ ... }:
+
+{
+  imports = [ ./perf-flamegraph.nix ];
+}
diff --git a/home/scripts/perf-flamegraph.nix b/home/scripts/perf-flamegraph.nix
new file mode 100644
index 0000000..f379591
--- /dev/null
+++ b/home/scripts/perf-flamegraph.nix
@@ -0,0 +1,22 @@
+{ pkgs, config, ... }:
+let
+  perf-flamegraph-process =
+    pkgs.writeShellScriptBin "perf-flamegraph-process" ''
+      set -euo pipefail
+
+      OUT_DIR="''${HOME}/workspace/tmp/flamegraph"
+      OUT_SVG="''${OUT_DIR}/$(date +%y%m%d-%H%M%S).svg"
+
+      mkdir -p ''${OUT_DIR}
+
+      ${pkgs.linuxPackages.perf}/bin/perf record -g --call-graph dwarf -F max "$@"
+      ${pkgs.linuxPackages.perf}/bin/perf script \
+        | ${pkgs.flamegraph}/bin/stackcollapse-perf.pl \
+        | ${pkgs.flamegraph}/bin/flamegraph.pl > "''${OUT_SVG}"
+    '';
+in {
+  config = {
+    home.packages = with pkgs; [ flamegraph perf-flamegraph-process ];
+  };
+}
+
diff --git a/home/seahorse/default.nix b/home/seahorse/default.nix
new file mode 100644
index 0000000..54688a1
--- /dev/null
+++ b/home/seahorse/default.nix
@@ -0,0 +1,9 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.seahorse;
+in {
+  options.my.home.seahorse = with lib; {
+    enable = mkEnableOption "seahorse configuration";
+  };
+
+  config.home.packages = with pkgs; lib.mkIf cfg.enable ([ gnome.seahorse ]);
+}
diff --git a/home/ssh/default.nix b/home/ssh/default.nix
new file mode 100644
index 0000000..1088e80
--- /dev/null
+++ b/home/ssh/default.nix
@@ -0,0 +1,23 @@
+{ config, lib, ... }:
+let cfg = config.my.home.ssh;
+in {
+  options.my.home.ssh = with lib; {
+    enable = mkEnableOption "ssh configuration";
+  };
+
+  config.programs.ssh = lib.mkIf cfg.enable {
+    enable = true;
+    forwardAgent = true;
+    serverAliveInterval = 60;
+    controlMaster = "auto";
+    controlPersist = "30m";
+    matchBlocks = {
+      "github.com" = {
+        hostname = "github.com";
+        user = "git";
+        forwardAgent = false;
+        extraOptions = { preferredAuthentications = "publickey"; };
+      };
+    };
+  };
+}
diff --git a/home/sublime-music/default.nix b/home/sublime-music/default.nix
new file mode 100644
index 0000000..fad10ac
--- /dev/null
+++ b/home/sublime-music/default.nix
@@ -0,0 +1,10 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.sublime-music;
+in {
+  options.my.home.sublime-music = with lib; {
+    enable = mkEnableOption "sublime-music configuration";
+  };
+
+  config =
+    lib.mkIf cfg.enable { home.packages = with pkgs; [ sublime-music ]; };
+}
diff --git a/home/terminal/alacritty/default.nix b/home/terminal/alacritty/default.nix
new file mode 100644
index 0000000..2bcd041
--- /dev/null
+++ b/home/terminal/alacritty/default.nix
@@ -0,0 +1,27 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.terminal;
+in {
+  config = lib.mkIf (cfg.program == "alacritty") {
+    programs.alacritty = {
+      enable = true;
+
+      settings = {
+        env = { TERM = "xterm-256color"; };
+        live_config_reload = true;
+        draw_bold_text_with_bright_colors = true;
+        selection = { save_to_clipboard = true; };
+        font = { size = 12; };
+        colors = {
+          primary = {
+            foreground = "#000000";
+            background = "#FFFFFF";
+          };
+        };
+        cursor = {
+          style.blinking = "Never";
+          unfocused_hollow = true;
+        };
+      };
+    };
+  };
+}
diff --git a/home/terminal/default.nix b/home/terminal/default.nix
new file mode 100644
index 0000000..e1ff0d7
--- /dev/null
+++ b/home/terminal/default.nix
@@ -0,0 +1,17 @@
+{ config, lib, ... }:
+let cfg = config.my.home.terminal;
+in {
+  imports = [ ./alacritty ];
+  options.my.home = with lib; {
+    terminal = {
+      program = mkOption {
+        type = with types; nullOr (enum [ "alacritty" ]);
+        default = null;
+        example = "alacritty";
+        description = "Which terminal to use for home session";
+      };
+    };
+  };
+  config.home.sessionVariables =
+    lib.mkIf (cfg.program != null) { TERMINAL = cfg.program; };
+}
diff --git a/home/tmux/default.nix b/home/tmux/default.nix
new file mode 100644
index 0000000..499a64b
--- /dev/null
+++ b/home/tmux/default.nix
@@ -0,0 +1,25 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.tmux;
+in {
+  options.my.home.tmux = with lib; {
+    enable = mkEnableOption "tmux terminal multiplexer";
+  };
+
+  config.programs.tmux = lib.mkIf cfg.enable {
+    enable = true;
+
+    terminal = "xterm-256color";
+    escapeTime = 0;
+    aggressiveResize = true;
+    baseIndex = 1;
+    shortcut = "z";
+    clock24 = true;
+    historyLimit = 50000; # Bigger buffer
+
+    extraConfig = ''
+      setw -g mouse on
+
+      set-option -g renumber-windows on
+    '';
+  };
+}
diff --git a/home/transmission-remote/default.nix b/home/transmission-remote/default.nix
new file mode 100644
index 0000000..29c070b
--- /dev/null
+++ b/home/transmission-remote/default.nix
@@ -0,0 +1,10 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.transmission-remote;
+in {
+  options.my.home.transmission-remote = with lib; {
+    enable = mkEnableOption "transmission-remote configuration";
+  };
+
+  config.home.packages = with pkgs;
+    lib.mkIf cfg.enable ([ transmission-remote-gtk ]);
+}
diff --git a/home/vlc/default.nix b/home/vlc/default.nix
new file mode 100644
index 0000000..f7ad141
--- /dev/null
+++ b/home/vlc/default.nix
@@ -0,0 +1,9 @@
+{ lib, config, pkgs, ... }:
+let cfg = config.my.home.vlc;
+in {
+  options.my.home.vlc = with lib; {
+    enable = mkEnableOption "vlc configuration";
+  };
+
+  config = lib.mkIf cfg.enable { home.packages = with pkgs; [ vlc ]; };
+}
diff --git a/home/wm/default.nix b/home/wm/default.nix
new file mode 100644
index 0000000..27a8bf4
--- /dev/null
+++ b/home/wm/default.nix
@@ -0,0 +1,19 @@
+{ config, lib, pkgs, ... }:
+let
+  mkRelatedOption = description: relatedWMs:
+    let isActivatedWm = wm: config.my.home.wm.windowManager == wm;
+    in (lib.mkEnableOption description) // {
+      default = builtins.any isActivatedWm relatedWMs;
+    };
+in {
+  imports = [ ./sway ./waybar ./mako ./swaylock ./wofi ./gammastep ];
+  options.my.home.wm = with lib; {
+    windowManager = mkOption {
+      type = with types; nullOr (enum [ "sway" ]);
+      default = null;
+      example = "sway";
+      description = "Which window manager to use for home session";
+    };
+    waybar = { enable = mkRelatedOption "waybar configuration" [ "sway" ]; };
+  };
+}
diff --git a/home/wm/gammastep/default.nix b/home/wm/gammastep/default.nix
new file mode 100644
index 0000000..0a9c684
--- /dev/null
+++ b/home/wm/gammastep/default.nix
@@ -0,0 +1,16 @@
+{ config, lib, pkgs, ... }:
+let isEnabled = config.my.home.wm.windowManager == "sway";
+in {
+  config = lib.mkIf isEnabled {
+    services.gammastep = {
+      enable = true;
+      #TODO: this needs to come from locale.nix
+      latitude = 37.8715;
+      longitude = -122.273;
+      temperature = {
+        day = 5000;
+        night = 3700;
+      };
+    };
+  };
+}
diff --git a/home/wm/mako/default.nix b/home/wm/mako/default.nix
new file mode 100644
index 0000000..3a13620
--- /dev/null
+++ b/home/wm/mako/default.nix
@@ -0,0 +1,28 @@
+{ config, lib, pkgs, ... }:
+let isEnabled = config.my.home.wm.windowManager == "sway";
+in {
+  config = lib.mkIf isEnabled {
+    home.packages = [
+      pkgs.libnotify # to send notifications
+    ];
+
+    systemd.user.services.mako = {
+      Service = { ExecStart = "${pkgs.mako}/bin/mako"; };
+      Install = { WantedBy = [ "sway-session.target" ]; };
+    };
+
+    # All the options are documented via `man 5 mako`
+    programs.mako = {
+      enable = true;
+      layer = "overlay";
+      # The timeout value is in millisecond
+      defaultTimeout = 30000;
+      # The maximum number of notifications
+      maxVisible = 3;
+      maxIconSize = 24;
+      # Enable pango markup (see https://docs.gtk.org/Pango/pango_markup.html)
+      markup = true;
+      actions = true;
+    };
+  };
+}
diff --git a/home/wm/sway/default.nix b/home/wm/sway/default.nix
new file mode 100644
index 0000000..ba70992
--- /dev/null
+++ b/home/wm/sway/default.nix
@@ -0,0 +1,113 @@
+{ config, lib, pkgs, ... }:
+let
+  isEnabled = config.my.home.wm.windowManager == "sway";
+  terminal = config.my.home.terminal.program;
+  modifier = "Mod4"; # `Super` key
+in {
+  config = lib.mkIf isEnabled {
+    home.packages = with pkgs; [
+      wlogout
+      brightnessctl
+      pulseaudio
+      grim
+      slurp
+      polkit_gnome
+      xsettingsd
+      swaylock
+      swayidle
+      wl-clipboard
+    ];
+
+    home.sessionVariables = {
+      MOZ_ENABLE_WAYLAND = true;
+      XDG_CURRENT_DESKTOP = "sway";
+      XDG_SESSION_TYPE = "wayland";
+    };
+
+    wayland.windowManager.sway = {
+      enable = true;
+      config = {
+        # FIXME: this should be a variable
+        terminal = "alacritty";
+        modifier = modifier;
+        menu = ''${pkgs.wofi}/bin/wofi -S drun -p "app:" -L 10'';
+        bars = [ ];
+        fonts = {
+          names = [ "Source Code Pro" ];
+          size = 10.0;
+        };
+        keybindings = lib.mkOptionDefault {
+          # control the volume
+          "XF86AudioRaiseVolume" =
+            "exec ${pkgs.pulseaudio}/bin/pactl set-sink-volume @DEFAULT_SINK@ +5%";
+          "XF86AudioLowerVolume" =
+            "exec ${pkgs.pulseaudio}/bin/pactl set-sink-volume @DEFAULT_SINK@ -5%";
+          "XF86AudioMute" =
+            "exec ${pkgs.pulseaudio}/bin/pactl set-sink-mute @DEFAULT_SINK@ toggle";
+          "XF86AudioMicMute" =
+            "exec ${pkgs.pulseaudio}/bin/pactl set-source-mute @DEFAULT_SOURCE@ toggle";
+
+          # control brightness
+          "XF86MonBrightnessDown" =
+            "exec ${pkgs.brightnessctl}/bin/brightnessctl set 5%-";
+          "XF86MonBrightnessUp" =
+            "exec ${pkgs.brightnessctl}/bin/brightnessctl set +5%";
+
+          # logout
+          "${modifier}+Escape" = "exec ${pkgs.wlogout}/bin/wlogout";
+
+          # screenshot
+          "${modifier}+s" =
+            "exec ${pkgs.grim}/bin/grim $(xdg-user-dir DOCUMENTS)/screenshots/$(date +'%Y-%m-%d-%H%M%S_screenshot.png')";
+          "${modifier}+Shift+s" =
+            "exec ${pkgs.slurp}/bin/slurp | ${pkgs.grim}/bin/grim -g - $(xdg-user-dir DOCUMENTS)/screenshots/$(date +'%Y-%m-%d-%H%M%S_screenshot.png')";
+
+          # File Manager
+          "${modifier}+p" = "exec ${pkgs.pcmanfm}/bin/pcmanfm";
+        };
+
+        # use `swaymsg -t get_tree' to get the title/name/ID of the applications
+        window = {
+          commands = [
+            {
+              criteria.class = ".blueman-manager-wrapped";
+              command = "floating enable";
+            }
+            {
+              criteria.class = "Pavucontrol";
+              command = "floating enable";
+            }
+          ];
+        };
+
+        input = {
+          "*" = {
+            "xkb_layout" = "us,fr";
+            # map capslock to ctrl, and switch layout using shift+caps
+            "xkb_options" = "ctrl:nocaps,grp:shift_caps_toggle";
+          };
+        };
+
+        assigns = {
+          "1" = [{ app_id = "emacs"; }];
+          "2" = [{ app_id = "Alacritty"; }];
+          "3" = [{ app_id = "firefox"; }];
+          "4" = [{ class = "Element"; }];
+        };
+
+        output = {
+          "*" = {
+            scale = "1.5";
+            bg = "#2E3440 solid_color";
+          };
+          # This is for aptos
+          "eDP-1" = { scale = "1.3"; };
+        };
+        startup = [{
+          command = ''
+            exec "systemctl --user import-environment; systemctl --user start sway-session.target"'';
+        }];
+      };
+    };
+  };
+}
diff --git a/home/wm/swaylock/config b/home/wm/swaylock/config
new file mode 100644
index 0000000..032695b
--- /dev/null
+++ b/home/wm/swaylock/config
@@ -0,0 +1,4 @@
+color=FFFFEA
+daemonize
+indicator-caps-lock
+hide-keyboard-layout
diff --git a/home/wm/swaylock/default.nix b/home/wm/swaylock/default.nix
new file mode 100644
index 0000000..3df802a
--- /dev/null
+++ b/home/wm/swaylock/default.nix
@@ -0,0 +1,27 @@
+{ config, lib, pkgs, ... }:
+let isEnabled = config.my.home.wm.windowManager == "sway";
+in {
+  config = lib.mkIf isEnabled {
+    xdg.configFile."swaylock/config" = { source = ./config; };
+
+    # https://github.com/nix-community/home-manager/pull/2610
+    # won't be needed for ever
+    systemd.user.services.swayidle = {
+      Unit.PartOf = [ "sway-session.target" ];
+      Install.WantedBy = [ "sway-session.target" ];
+
+      Service = {
+        Environment =
+          "PATH=${pkgs.bash}/bin:${config.wayland.windowManager.sway.package}/bin";
+        ExecStart = ''
+          ${pkgs.swayidle}/bin/swayidle -w \
+              timeout 300 "${pkgs.swaylock}/bin/swaylock" \
+              timeout 300 'swaymsg "output * dpms off"' \
+                  resume 'swaymsg "output * dpms on"' \
+              before-sleep "${pkgs.swaylock}/bin/swaylock"
+        '';
+        Restart = "on-failure";
+      };
+    };
+  };
+}
diff --git a/home/wm/waybar/default.nix b/home/wm/waybar/default.nix
new file mode 100644
index 0000000..c1bf601
--- /dev/null
+++ b/home/wm/waybar/default.nix
@@ -0,0 +1,52 @@
+{ config, lib, pkgs, ... }:
+let isEnabled = config.my.home.wm.windowManager == "sway";
+in {
+  config = lib.mkIf isEnabled {
+    programs.waybar = {
+      enable = true;
+      systemd = { enable = true; };
+
+      settings = [{
+        layer = "bottom";
+        position = "top";
+        margin-top = 0;
+        margin-left = 0;
+        margin-right = 0;
+        margin-bottom = 0;
+        modules-left = [ "sway/workspaces" "sway/mode" ];
+        modules-right = [ "pulseaudio" "network" "battery" "clock" "tray" ];
+        modules = {
+          "sway/workspaces" = { format = "{name}"; };
+          "sway/mode" = { format = "{}"; };
+          tray = { spacing = 10; };
+          clock = { format = "{: %a %b %d %R}"; };
+          battery = {
+            states = {
+              warning = 30;
+              critical = 15;
+            };
+            format = "ac:{capacity}%";
+            tooltip = true;
+            tooltip-format = "{timeTo} ({capacity}%)";
+          };
+          pulseaudio = {
+            format = "vol:{volume}%";
+            format-bluetooth = "bt:{volume}%";
+            format-bluetooth-muted = "bt:{volume}%";
+            format-muted = "vol:{volume}%";
+            on-click = "pavucontrol";
+          };
+          "network" = {
+            format-wifi = "{essid}:{signalStrength}%";
+            format-ethernet = "{ipaddr}/{cidr}";
+            format-linked = "{ifname} (No IP)";
+            format-disconnected = "network unavailable";
+            format-alt = "{ifname}: {ipaddr}/{cidr}";
+            tooltip = false;
+          };
+        };
+      }];
+      style = (builtins.readFile ./style.css);
+    };
+  };
+}
diff --git a/home/wm/waybar/style.css b/home/wm/waybar/style.css
new file mode 100644
index 0000000..e4565c8
--- /dev/null
+++ b/home/wm/waybar/style.css
@@ -0,0 +1,77 @@
+* {
+  border-radius: 0;
+  border: none;
+  margin: 0;
+  min-height: 0;
+  padding: 0;
+}
+#waybar {
+  font-family: Source Code Pro;
+  font-size: 15px;
+}
+window#waybar {
+  background-color: rgba(43, 48, 59, 0.9);
+  color: #ffffff;
+}
+#workspaces button {
+  padding: 0 3px;
+  background-color: transparent;
+  color: #888888;
+}
+#workspaces button.focused {
+  background-color: #285577;
+  border: 1px solid #4c7899;
+  color: #ffffff;
+}
+#workspaces button.urgent {
+  background-color: #900000;
+  border: 1px solid #2f343a;
+  color: #ffffff;
+}
+#clock,
+#battery,
+#network,
+#pulseaudio,
+#tray,
+#mode {
+  padding-left: 10px;
+  padding-right: 10px;
+}
+#mode {
+  /* No styles */
+}
+#tray {
+  /* No styles */
+}
+#clock {
+  /* No styles */
+}
+#battery {
+  animation-timing-function: linear;
+  animation-iteration-count: infinite;
+  animation-direction: alternate;
+}
+#battery.discharging {
+  color: #90a1ad;
+}
+#battery.charging {
+  color: #fffff8;
+}
+#battery.warning {
+  border-bottom: 2px solid #ff9e21;
+}
+#battery.critical {
+  border-bottom: 2px solid #ff3121;
+}
+#network {
+  /* No styles */
+}
+#network.disconnected {
+  color: orange;
+}
+#pulseaudio {
+  /* No styles */
+}
+#pulseaudio.muted {
+  color: #90a1ad;
+}
diff --git a/home/wm/wofi/config b/home/wm/wofi/config
new file mode 100644
index 0000000..95dedba
--- /dev/null
+++ b/home/wm/wofi/config
@@ -0,0 +1,4 @@
+allow_images=true
+image_size=20px
+drun-display_generic=true
+dynamic_lines=true
diff --git a/home/wm/wofi/default.nix b/home/wm/wofi/default.nix
new file mode 100644
index 0000000..ad3c759
--- /dev/null
+++ b/home/wm/wofi/default.nix
@@ -0,0 +1,8 @@
+{ config, lib, pkgs, ... }:
+let isEnabled = config.my.home.wm.windowManager == "sway";
+in {
+  config = lib.mkIf isEnabled {
+    home.packages = with pkgs; [ wofi ];
+    xdg.configFile."wofi/config".source = ./config;
+  };
+}
diff --git a/home/xdg/default.nix b/home/xdg/default.nix
new file mode 100644
index 0000000..133b0ad
--- /dev/null
+++ b/home/xdg/default.nix
@@ -0,0 +1,46 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.xdg;
+in {
+  options.my.home.xdg = with lib; {
+    enable = mkEnableOption "XDG configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    xdg = {
+      enable = true;
+      # File types
+      mime.enable = true;
+      # File associatons
+      mimeApps = { enable = true; };
+      # User directories
+      userDirs = {
+        enable = true;
+        createDirectories = true;
+        desktop = "${config.home.homeDirectory}/documents";
+        documents = "${config.home.homeDirectory}/documents";
+        download = "${config.home.homeDirectory}/downloads";
+        music = "${config.home.homeDirectory}/media/music";
+        pictures = "${config.home.homeDirectory}/media/pictures";
+        publicShare = "${config.home.homeDirectory}/documents/public";
+        templates = "${config.home.homeDirectory}/documents/templates";
+        videos = "${config.home.homeDirectory}/media/videos";
+      };
+    };
+
+    # xdg.portal = {
+    #   enable = true;
+    #   gtkUsePortal = true;
+    #   extraPortals =
+    #     [ pkgs.xdg-desktop-portal-gtk pkgs.xdg-desktop-portal-wlr ];
+    # };
+
+    home.packages = with pkgs; [ xdg-utils ];
+
+    # I want a tidier home
+    home.sessionVariables = with config.xdg; {
+      DOCKER_CONFIG = "${configHome}/docker";
+      LESSHISTFILE = "${dataHome}/less/history";
+      LESSKEY = "${configHome}/less/lesskey";
+    };
+  };
+}
diff --git a/home/yt-dlp/config b/home/yt-dlp/config
new file mode 100644
index 0000000..4710c9f
--- /dev/null
+++ b/home/yt-dlp/config
@@ -0,0 +1,26 @@
+# Preferred formats:
+# 1. 1080p, combined, mp4 (for some non-youtube sites).
+# 2. 1080p, combined, any format (in case mp4 is not available).
+# 3. 1080p, best video + best audio (only available with separate video and audio on youtube).
+# 4. >30fps (any resolution), best video + best audio (only available with separate video and audio on youtube).
+# 5. 720p, pre-joined, because it is available on youtube.
+# 6. <720p, best video + best audio (480p and some other lower resolutions are only available with separate video and audio on youtube).
+# 7. When all else fails, take whatever youtube-dl thinks is the best (mainly for non-YT websites).
+--format="best[height=1080][ext=mp4]/best[height=1080]/bestvideo[height=1080][ext=mp4]+bestaudio[ext=m4a]/bestvideo[fps>30][ext=mp4]+bestaudio[ext=m4a]/best[height=720][ext=mp4]/bestvideo[ext=mp4]+bestaudio[ext=m4a]/best"
+
+--sub-langs all
+--write-subs
+
+--convert-subs=srt
+
+--restrict-filenames
+--output="$HOME/media/videos/%(title)s.%(ext)s"
+--merge-output-format mkv
+
+--embed-metadata
+--embed-chapters
+--embed-info-json
+# create chapter entries to mark sponsor segments
+--sponsorblock-mark all
+
+--yes-playlist
diff --git a/home/yt-dlp/default.nix b/home/yt-dlp/default.nix
new file mode 100644
index 0000000..4e9cdf4
--- /dev/null
+++ b/home/yt-dlp/default.nix
@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.home.yt-dlp;
+in {
+  options.my.home.yt-dlp = with lib; {
+    enable = mkEnableOption "yt-dlp configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    home.packages = with pkgs; [ yt-dlp ];
+    xdg.configFile."yt-dlp/config".source = ./config;
+  };
+}
diff --git a/home/zsh/completion-style.zsh b/home/zsh/completion-style.zsh
new file mode 100644
index 0000000..32bd6f4
--- /dev/null
+++ b/home/zsh/completion-style.zsh
@@ -0,0 +1,34 @@
+# Style the completion a bit
+zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
+
+# Show a prompt on selection
+zstyle ':completion:*' select-prompt '%SScrolling active: current selection at %p%s'
+
+# Use arrow keys in completion list
+zstyle ':completion:*' menu select
+
+# Group results by category
+zstyle ':completion:*' group-name ''
+
+# Keep directories and files separated
+zstyle ':completion:*' list-dirs-first true
+
+# Add colors to processes for kill completion
+zstyle ':completion:*:*:kill:*:processes' list-colors '=(#b) #([0-9]#)*=0=01;31'
+
+# match uppercase from lowercase
+zstyle ':completion:*' matcher-list 'm:{a-z}={A-Z}'
+
+# Filename suffixes to ignore during completion (except after rm command)
+zstyle ':completion:*:*:(^rm):*:*files' ignored-patterns '*?.old'
+
+# command for process lists, the local web server details and host completion
+# on processes completion complete all user processes
+zstyle ':completion:*:processes' command 'ps -au$USER'
+
+# Completion formatting and messages
+zstyle ':completion:*' verbose yes
+zstyle ':completion:*:descriptions' format '%B%d%b'
+zstyle ':completion:*:messages' format '%d'
+zstyle ':completion:*:warnings' format 'No matches for: %d'
+zstyle ':completion:*:corrections' format '%B%d (errors: %e)%b'
diff --git a/home/zsh/default.nix b/home/zsh/default.nix
new file mode 100644
index 0000000..0ee9e43
--- /dev/null
+++ b/home/zsh/default.nix
@@ -0,0 +1,56 @@
+{ config, pkgs, lib, ... }:
+let cfg = config.my.home.zsh;
+in {
+  options.my.home.zsh = with lib; {
+    enable = mkEnableOption "zsh configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    home.packages = with pkgs; [ zsh-completions ];
+
+    programs.zsh = {
+      enable = true;
+      dotDir = ".config/zsh";
+      enableCompletion = true;
+
+      history = {
+        size = 500000;
+        save = 500000;
+        extended = false;
+        ignoreSpace = true;
+        ignoreDups = true;
+        share = false;
+        # see
+        # https://github.com/nix-community/home-manager/blob/32a7da69dc53c9eb5ad0675eb7fdc58f7fe35272/modules/programs/zsh.nix#L537
+        path = ".local/share/zsh/zsh_history";
+      };
+
+      localVariables = {
+        # Print timing statistics for everything which takes longer than 5 seconds of
+        # user + system time.
+        REPORTTIME = 5;
+      };
+
+      shellAliases = {
+        ll = "ls -l --color=auto";
+        lt = "ls -ltrh --color=auto";
+        drone = "DRONE_TOKEN=$(pass api/drone.fcuny.xyz) drone";
+      };
+
+      defaultKeymap = "emacs";
+
+      initExtraFirst = ''
+        if [ -z $DISPLAY ] && [ "$(tty)" = "/dev/tty1" ]; then
+          exec sway
+        fi
+      '';
+
+      initExtra = lib.concatMapStrings builtins.readFile [
+        ./completion-style.zsh
+        ./options.zsh
+        ./prompt.zsh
+        ./tmux.zsh
+      ];
+    };
+  };
+}
diff --git a/home/zsh/options.zsh b/home/zsh/options.zsh
new file mode 100644
index 0000000..6d39bc1
--- /dev/null
+++ b/home/zsh/options.zsh
@@ -0,0 +1,27 @@
+# Show an error when a globbing expansion doesn't find any match
+setopt nomatch
+
+# List on ambiguous completion and Insert first match immediately
+setopt autolist menucomplete
+
+# Use pushd when cd-ing around
+setopt autopushd pushdminus pushdsilent
+
+# Use single quotes in string without the weird escape tricks
+setopt rcquotes
+
+# Single word commands can resume an existing job
+setopt autoresume
+
+# Append commands to history as they are exectuted
+setopt inc_append_history_time
+
+# Remove useless whitespace from commands
+setopt hist_reduce_blanks
+
+# Those options aren't wanted
+unsetopt beep extendedglob notify
+
+# word select works like in bash
+autoload -U select-word-style
+select-word-style bash
diff --git a/home/zsh/prompt.zsh b/home/zsh/prompt.zsh
new file mode 100644
index 0000000..1c21d4b
--- /dev/null
+++ b/home/zsh/prompt.zsh
@@ -0,0 +1,11 @@
+setopt prompt_subst
+
+PROMPT='%K{cyan}%F{black}%m%k%f %~ %% '
+
+# For tramp (emacs).
+if [ "$TERM" = "dumb" ]; then
+  unset PROMPT
+  PS1='$ '
+  unsetopt zle
+fi
+
diff --git a/home/zsh/tmux.zsh b/home/zsh/tmux.zsh
new file mode 100644
index 0000000..4120512
--- /dev/null
+++ b/home/zsh/tmux.zsh
@@ -0,0 +1,3 @@
+if command -v tmux &> /dev/null && [ -z "$TMUX" ]; then
+  tmux attach -t default || tmux new -s default
+fi
diff --git a/hosts/aptos/default.nix b/hosts/aptos/default.nix
new file mode 100644
index 0000000..04d45ee
--- /dev/null
+++ b/hosts/aptos/default.nix
@@ -0,0 +1,32 @@
+{ config, pkgs, hostname, ... }:
+
+{
+  imports = [ # Include the results of the hardware scan.
+    ./hardware.nix
+    ./sound.nix
+    ./networking.nix
+    ./profile.nix
+    ./home.nix
+    ./services.nix
+  ];
+
+  virtualisation.docker = { enable = true; };
+
+  virtualisation.containerd = {
+    enable = true;
+    settings = {
+      plugins."io.containerd.grpc.v1.cri" = {
+        containerd.snapshotter = "overlayfs";
+      };
+    };
+  };
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.11"; # Did you read the comment?
+}
+
diff --git a/hosts/aptos/hardware.nix b/hosts/aptos/hardware.nix
new file mode 100644
index 0000000..085db9f
--- /dev/null
+++ b/hosts/aptos/hardware.nix
@@ -0,0 +1,45 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  boot.initrd.availableKernelModules =
+    [ "xhci_pci" "nvme" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
+  boot.initrd.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/292e07ac-4199-4a97-94a6-bd2fd2a9cf6a";
+    fsType = "btrfs";
+    options = [ "subvol=nixos" ];
+  };
+
+  boot.initrd.luks.devices."system".device =
+    "/dev/disk/by-uuid/c83a8db7-4215-4864-8a46-b8ca839d8c05";
+
+  fileSystems."/home" = {
+    device = "/dev/disk/by-uuid/292e07ac-4199-4a97-94a6-bd2fd2a9cf6a";
+    fsType = "btrfs";
+    options = [ "subvol=home" ];
+  };
+
+  fileSystems."/.snapshots" = {
+    device = "/dev/disk/by-uuid/292e07ac-4199-4a97-94a6-bd2fd2a9cf6a";
+    fsType = "btrfs";
+    options = [ "subvol=snapshots" ];
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/42D9-6EA8";
+    fsType = "vfat";
+  };
+
+  swapDevices =
+    [{ device = "/dev/disk/by-uuid/24041034-ff39-44bf-a04c-8fd8318b554d"; }];
+
+  my.hardware.intel.enable = true;
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+}
diff --git a/hosts/aptos/home.nix b/hosts/aptos/home.nix
new file mode 100644
index 0000000..d7a6545
--- /dev/null
+++ b/hosts/aptos/home.nix
@@ -0,0 +1,14 @@
+{ pkgs, ... }: {
+  my.home = {
+    packages.enable = true;
+    bluetooth.enable = true;
+    element.enable = true;
+    zsh.enable = true;
+    git.enable = true;
+    go.enable = true;
+    python.enable = true;
+    scanner.enable = true;
+    tmux.enable = true;
+    yt-dlp.enable = true;
+  };
+}
diff --git a/hosts/aptos/networking.nix b/hosts/aptos/networking.nix
new file mode 100644
index 0000000..111fbe7
--- /dev/null
+++ b/hosts/aptos/networking.nix
@@ -0,0 +1,38 @@
+{ lib, ... }:
+
+{
+  # Use systemd-networkd for networking
+  systemd.network = {
+    enable = true;
+    networks = {
+      wlan0 = {
+        matchConfig.Name = "wlan0";
+        networkConfig = { DHCP = "yes"; };
+        extraConfig = ''
+          [DHCPv4]
+          UseDNS=yes
+          UseDomains=yes
+        '';
+      };
+    };
+  };
+
+  networking = {
+    hostName = "aptos";
+    useNetworkd = true;
+    useDHCP = false;
+    private-wireguard.enable = true;
+  };
+
+  services.nscd.enable = false;
+  system.nssModules = lib.mkForce [ ];
+
+  # Use systemd-resolved
+  services.resolved = {
+    enable = true;
+    dnssec = "false";
+  };
+
+  my.hardware.networking.wireless.enable = true;
+  my.services.tailscale.enable = true;
+}
diff --git a/hosts/aptos/profile.nix b/hosts/aptos/profile.nix
new file mode 100644
index 0000000..4e5b48d
--- /dev/null
+++ b/hosts/aptos/profile.nix
@@ -0,0 +1,14 @@
+{ ... }: {
+
+  # Install tools related to the scanner (scanimage etc)
+  hardware.sane.enable = true;
+
+  my.profiles = {
+    # Laptop specific configuration
+    laptop.enable = true;
+    bluetooth.enable = true;
+    desktop.enable = true;
+    multimedia.enable = true;
+    trusted.enable = true;
+  };
+}
diff --git a/hosts/aptos/secrets/gcloud/world-nix.age b/hosts/aptos/secrets/gcloud/world-nix.age
new file mode 100644
index 0000000..a8b51b2
--- /dev/null
+++ b/hosts/aptos/secrets/gcloud/world-nix.age
Binary files differdiff --git a/hosts/aptos/secrets/restic/repo-users.age b/hosts/aptos/secrets/restic/repo-users.age
new file mode 100644
index 0000000..59c435a
--- /dev/null
+++ b/hosts/aptos/secrets/restic/repo-users.age
@@ -0,0 +1,9 @@
+age-encryption.org/v1
+-> ssh-ed25519 dtgBNg 5MAt41NmpX7UB+6zxI8NHrXpjvsn0iiEaUDwgt4RWDQ
+40RuB49FnH8WkPptwfiC4Es5b8JkI5PT6eau0f2wtOI
+-> ssh-ed25519 +LF+iw kchufYdtZ4Zp3fT58mFxbe033PLCPHXvMBwdR+xTTFM
+Kya9nVBHiVuDD5DJPQfsl3c5V64uCJb2nbPhWfbFqnA
+-> '-grease a3~x=^
+bn2D2ZS3fW4a42Au7J95HAQPE9IBGOULmNKH6XFWKNi+BzWiG3yo37MOog
+--- jvVR43MbkXMwylmHM3IrKwGjfnL8TdnWRoIrUergBC4
+Us9'`}m)N=~/}TDQMuv$
\ No newline at end of file
diff --git a/hosts/aptos/secrets/secrets.nix b/hosts/aptos/secrets/secrets.nix
new file mode 100644
index 0000000..9e503b2
--- /dev/null
+++ b/hosts/aptos/secrets/secrets.nix
@@ -0,0 +1,28 @@
+let
+  fcuny =
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIdlm/qoR/dnMjZhVSTtqFzkgN3Yf9eQ3pgKMiipg+dl";
+  aptos =
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOTcPGaiL+/Mwl8JzLHrBwas7QvWPjix4lnaAA1tw+5t";
+in {
+  "wireguard_privatekey.age".publicKeys = [ fcuny aptos ];
+
+  "syncthing/key.age" = {
+    publicKeys = [ fcuny aptos ];
+    owner = "fcuny";
+  };
+
+  "syncthing/cert.age" = {
+    publicKeys = [ fcuny aptos ];
+    owner = "fcuny";
+  };
+
+  "restic/repo-users.age" = {
+    publicKeys = [ fcuny aptos ];
+    owner = "fcuny";
+  };
+
+  "gcloud/world-nix.age" = {
+    publicKeys = [ fcuny aptos ];
+    owner = "fcuny";
+  };
+}
diff --git a/hosts/aptos/secrets/syncthing/cert.age b/hosts/aptos/secrets/syncthing/cert.age
new file mode 100644
index 0000000..33c6645
--- /dev/null
+++ b/hosts/aptos/secrets/syncthing/cert.age
Binary files differdiff --git a/hosts/aptos/secrets/syncthing/key.age b/hosts/aptos/secrets/syncthing/key.age
new file mode 100644
index 0000000..4e5c123
--- /dev/null
+++ b/hosts/aptos/secrets/syncthing/key.age
Binary files differdiff --git a/hosts/aptos/secrets/wireguard_privatekey.age b/hosts/aptos/secrets/wireguard_privatekey.age
new file mode 100644
index 0000000..17559c3
--- /dev/null
+++ b/hosts/aptos/secrets/wireguard_privatekey.age
@@ -0,0 +1,10 @@
+age-encryption.org/v1
+-> ssh-ed25519 dtgBNg FHZdyNsEtCMF7rNUGO7TauqsMfwDDGwcp9Qm0Ol9e1g
+RmWlyqW2jq3WkfRRmbGpaT/gre3ZSqQp4+lYEgXszAM
+-> ssh-ed25519 +LF+iw ZmLkAMA1NOAwFMoCa0keA4K8VIo+hnTctFCWVaQbFWI
+mm91OaR6HC/W6Wml+AYwnKN1nzOmqt43VpEzv6SYKFE
+-> $.%v/-grease R
+sVPs8WkXy+KnPioNwaun9oDe6k5ZvDQr7Km/6xIKmrOQkaEzflrLJXgj4GdmByki
+KktJM38SRPKiBhW757c
+--- Y3jxOsnE/O8pGbt3P85sz1ZQ5uHzmIjozAzSvmhimHA
+Vsk¾\븡ФBȴROYxy+!m3;!{HC;A}
\ No newline at end of file
diff --git a/hosts/aptos/services.nix b/hosts/aptos/services.nix
new file mode 100644
index 0000000..a2210e2
--- /dev/null
+++ b/hosts/aptos/services.nix
@@ -0,0 +1,19 @@
+{ config, ... }:
+let secrets = config.age.secrets;
+in {
+  my.services = {
+    backup = {
+      enable = true;
+      user = "fcuny";
+      repository = "sftp:192.168.0.107:/data/slow/backups/users/fcuny";
+      exclude = [
+        "/home/fcuny/.cache"
+        "/home/fcuny/downloads"
+        "/home/fcuny/workspace/linux.git"
+      ];
+      timerConfig = { OnCalendar = "06:30"; };
+      passwordFile = secrets."restic/repo-users".path;
+      paths = [ "/home/fcuny" ];
+    };
+  };
+}
diff --git a/hosts/aptos/sound.nix b/hosts/aptos/sound.nix
new file mode 100644
index 0000000..947f9cd
--- /dev/null
+++ b/hosts/aptos/sound.nix
@@ -0,0 +1 @@
+{ ... }: { my.hardware.sound = { pipewire = { enable = true; }; }; }
diff --git a/hosts/carmel/boot.nix b/hosts/carmel/boot.nix
new file mode 100644
index 0000000..606215e
--- /dev/null
+++ b/hosts/carmel/boot.nix
@@ -0,0 +1,14 @@
+{ ... }:
+
+{
+  boot = {
+    # get an IP address on boot, so we can unlock the root disk remotely
+    kernelParams = [ "ip=dhcp" ];
+    initrd = {
+      # driver for the NIC, required in order to get an IP address
+      kernelModules = [ "igb" ];
+    };
+  };
+
+  my.system.boot = { initrd = { network.enable = true; }; };
+}
diff --git a/hosts/carmel/default.nix b/hosts/carmel/default.nix
new file mode 100644
index 0000000..87ad97d
--- /dev/null
+++ b/hosts/carmel/default.nix
@@ -0,0 +1,23 @@
+{ config, pkgs, hostname, ... }:
+
+{
+  imports = [
+    ./hardware.nix
+    ./boot.nix
+    ./sound.nix
+    ./networking.nix
+    ./home.nix
+    ./profile.nix
+  ];
+
+  hardware.opengl.driSupport = true;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.11"; # Did you read the comment?
+}
+
diff --git a/hosts/carmel/hardware.nix b/hosts/carmel/hardware.nix
new file mode 100644
index 0000000..aa86049
--- /dev/null
+++ b/hosts/carmel/hardware.nix
@@ -0,0 +1,46 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  boot.initrd.availableKernelModules =
+    [ "nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/7d4e07d8-1104-4ab8-8ead-8ca28da2d344";
+    fsType = "btrfs";
+    options = [ "subvol=nixos" ];
+  };
+
+  boot.initrd.luks.devices."system".device =
+    "/dev/disk/by-uuid/dd1b3673-ece0-49f8-bf71-8cc4e1a06634";
+
+  fileSystems."/home" = {
+    device = "/dev/disk/by-uuid/7d4e07d8-1104-4ab8-8ead-8ca28da2d344";
+    fsType = "btrfs";
+    options = [ "subvol=home" ];
+  };
+
+  fileSystems."/.snapshots" = {
+    device = "/dev/disk/by-uuid/7d4e07d8-1104-4ab8-8ead-8ca28da2d344";
+    fsType = "btrfs";
+    options = [ "subvol=snapshots" ];
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/7430-1C58";
+    fsType = "vfat";
+  };
+
+  swapDevices =
+    [{ device = "/dev/disk/by-uuid/ebcb04f3-4227-4ec3-af52-bd775ef38027"; }];
+
+  my.hardware.amd.enable = true;
+  # high-resolution display
+  hardware.video.hidpi.enable = lib.mkDefault true;
+}
diff --git a/hosts/carmel/home.nix b/hosts/carmel/home.nix
new file mode 100644
index 0000000..231aebd
--- /dev/null
+++ b/hosts/carmel/home.nix
@@ -0,0 +1,14 @@
+{ pkgs, ... }:
+
+{
+  my.home = {
+    packages.enable = true;
+    zsh.enable = true;
+    git.enable = true;
+    go.enable = true;
+    python.enable = true;
+    scanner.enable = true;
+    tmux.enable = true;
+    yt-dlp.enable = true;
+  };
+}
diff --git a/hosts/carmel/networking.nix b/hosts/carmel/networking.nix
new file mode 100644
index 0000000..8ad9d3e
--- /dev/null
+++ b/hosts/carmel/networking.nix
@@ -0,0 +1,35 @@
+{ lib, ... }:
+
+{
+  # Use systemd-networkd for networking
+  systemd.network = {
+    enable = true;
+    networks = {
+      enp9s0 = {
+        matchConfig.Name = "enp9s0";
+        networkConfig = { DHCP = "yes"; };
+        extraConfig = ''
+          [DHCPv4]
+          UseDNS=yes
+          UseDomains=yes
+        '';
+      };
+    };
+  };
+
+  services.nscd.enable = false;
+  system.nssModules = lib.mkForce [ ];
+
+  # Use systemd-resolved
+  services.resolved = {
+    enable = true;
+    dnssec = "false";
+  };
+
+  networking = {
+    hostName = "carmel";
+    useNetworkd = true;
+    useDHCP = false;
+    private-wireguard.enable = true;
+  };
+}
diff --git a/hosts/carmel/profile.nix b/hosts/carmel/profile.nix
new file mode 100644
index 0000000..6174a60
--- /dev/null
+++ b/hosts/carmel/profile.nix
@@ -0,0 +1,5 @@
+{ ... }:
+
+{
+  my.profiles.desktop.enable = true;
+}
diff --git a/hosts/carmel/sound.nix b/hosts/carmel/sound.nix
new file mode 100644
index 0000000..947f9cd
--- /dev/null
+++ b/hosts/carmel/sound.nix
@@ -0,0 +1 @@
+{ ... }: { my.hardware.sound = { pipewire = { enable = true; }; }; }
diff --git a/hosts/tahoe/boot.nix b/hosts/tahoe/boot.nix
new file mode 100644
index 0000000..f013f34
--- /dev/null
+++ b/hosts/tahoe/boot.nix
@@ -0,0 +1,17 @@
+{ ... }:
+
+{
+  boot = {
+    # get an IP address on boot, so we can unlock the root disk remotely
+    kernelParams = [ "ip=dhcp" ];
+    initrd = {
+      # driver for the NIC, required in order to get an IP address
+      kernelModules = [ "r8169" ];
+    };
+  };
+
+  my.system.boot = {
+    tmp = { clean = true; };
+    initrd = { network.enable = true; };
+  };
+}
diff --git a/hosts/tahoe/default.nix b/hosts/tahoe/default.nix
new file mode 100644
index 0000000..1998a51
--- /dev/null
+++ b/hosts/tahoe/default.nix
@@ -0,0 +1,22 @@
+{ config, pkgs, hostname, ... }:
+
+{
+  imports =
+    [ ./boot.nix ./hardware.nix ./networking.nix ./home.nix ./services.nix ];
+
+  users.groups.nas.gid = 5000;
+  users.users.nas = {
+    uid = 5000;
+    group = "nas";
+    isSystemUser = true;
+  };
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.11"; # Did you read the comment?
+}
+
diff --git a/hosts/tahoe/hardware.nix b/hosts/tahoe/hardware.nix
new file mode 100644
index 0000000..ab08490
--- /dev/null
+++ b/hosts/tahoe/hardware.nix
@@ -0,0 +1,63 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  boot.initrd.availableKernelModules =
+    [ "xhci_pci" "ahci" "nvme" "usbhid" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/128c2a5e-48f6-4d94-b196-fb5db500b36d";
+    fsType = "btrfs";
+    options = [ "subvol=nixos" ];
+  };
+
+  boot.initrd.luks.devices."system".device =
+    "/dev/disk/by-uuid/0d11e090-d88f-4313-8a41-8ef52eea0870";
+
+  fileSystems."/home" = {
+    device = "/dev/disk/by-uuid/128c2a5e-48f6-4d94-b196-fb5db500b36d";
+    fsType = "btrfs";
+    options = [ "subvol=home" ];
+  };
+
+  fileSystems."/.snapshots" = {
+    device = "/dev/disk/by-uuid/128c2a5e-48f6-4d94-b196-fb5db500b36d";
+    fsType = "btrfs";
+    options = [ "subvol=snapshots" ];
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/CBB9-B788";
+    fsType = "vfat";
+  };
+
+  fileSystems."/data/fast" = {
+    device = "/dev/disk/by-uuid/b9290b55-8ff6-4bd0-843d-a9e6f7a4df59";
+    fsType = "btrfs";
+  };
+
+  boot.initrd.luks.devices."raid-fast".device =
+    "/dev/disk/by-uuid/66c58a92-45fe-4b03-9be0-214ff67c177c";
+
+  fileSystems."/data/slow" = {
+    device = "/dev/disk/by-uuid/0f16db51-0ee7-48d8-9e48-653b85ecbf0a";
+    fsType = "btrfs";
+  };
+
+  boot.initrd.luks.devices."raid-slow".device =
+    "/dev/disk/by-uuid/d8b21267-d457-4522-91d9-5481b44dd0a5";
+
+  swapDevices =
+    [{ device = "/dev/disk/by-uuid/0f54b5ab-4fca-4c5a-a9eb-622553145163"; }];
+
+  my.hardware.amd.enable = true;
+
+  # high-resolution display
+  hardware.video.hidpi.enable = lib.mkDefault true;
+}
diff --git a/hosts/tahoe/home.nix b/hosts/tahoe/home.nix
new file mode 100644
index 0000000..2e56275
--- /dev/null
+++ b/hosts/tahoe/home.nix
@@ -0,0 +1,17 @@
+{ pkgs, ... }:
+
+{
+  my.home = {
+    packages = { enable = true; };
+    tmux.enable = true;
+    git.enable = true;
+    ssh.enable = true;
+    zsh.enable = true;
+    beets = {
+      enable = true;
+      musicDirectory = "/data/fast/music";
+    };
+    flac.enable = true;
+    yt-dlp.enable = true;
+  };
+}
diff --git a/hosts/tahoe/networking.nix b/hosts/tahoe/networking.nix
new file mode 100644
index 0000000..22a7251
--- /dev/null
+++ b/hosts/tahoe/networking.nix
@@ -0,0 +1,38 @@
+{ lib, ... }:
+
+{
+  # Use systemd-networkd for networking
+  systemd.network = {
+    enable = true;
+    networks = {
+      enp42s0 = {
+        matchConfig.Name = "enp42s0";
+        networkConfig = { DHCP = "yes"; };
+        extraConfig = ''
+          [DHCPv4]
+          UseDNS=yes
+          UseDomains=yes
+        '';
+      };
+    };
+  };
+
+  networking = {
+    hostName = "tahoe";
+    useNetworkd = true;
+    useDHCP = false;
+    private-wireguard.enable = true;
+    firewall.enable = false;
+  };
+
+  services.nscd.enable = false;
+  system.nssModules = lib.mkForce [ ];
+
+  # Use systemd-resolved
+  services.resolved = {
+    enable = true;
+    dnssec = "false";
+  };
+
+  my.services.tailscale.enable = true;
+}
diff --git a/hosts/tahoe/secrets/acme/credentials.age b/hosts/tahoe/secrets/acme/credentials.age
new file mode 100644
index 0000000..1a3f92f
--- /dev/null
+++ b/hosts/tahoe/secrets/acme/credentials.age
Binary files differdiff --git a/hosts/tahoe/secrets/acme/gcp_service_account.json.age b/hosts/tahoe/secrets/acme/gcp_service_account.json.age
new file mode 100644
index 0000000..d90b0e5
--- /dev/null
+++ b/hosts/tahoe/secrets/acme/gcp_service_account.json.age
Binary files differdiff --git a/hosts/tahoe/secrets/drone/secrets.age b/hosts/tahoe/secrets/drone/secrets.age
new file mode 100644
index 0000000..618bbc6
--- /dev/null
+++ b/hosts/tahoe/secrets/drone/secrets.age
Binary files differdiff --git a/hosts/tahoe/secrets/drone/shared-secrets b/hosts/tahoe/secrets/drone/shared-secrets
new file mode 100644
index 0000000..47612be
--- /dev/null
+++ b/hosts/tahoe/secrets/drone/shared-secrets
@@ -0,0 +1,5 @@
+DRONE_GITEA_CLIENT_ID=21ef7412-a58a-493c-beec-2e1dc27ebe79
+DRONE_GITEA_CLIENT_SECRET=GCXGi97PXxAoMTpHveMtNJXDyzdvI8jeC0TaEtCgpPab
+DRONE_GITEA_SERVER=https://git.fcuny.net
+DRONE_GIT_ALWAYS_AUTH=1
+DRONE_RPC_SECRET=d3daa6782d0f4ed66f7f557fa384ff8f
diff --git a/hosts/tahoe/secrets/rclone/config.ini.age b/hosts/tahoe/secrets/rclone/config.ini.age
new file mode 100644
index 0000000..1c4f7c0
--- /dev/null
+++ b/hosts/tahoe/secrets/rclone/config.ini.age
@@ -0,0 +1,11 @@
+age-encryption.org/v1
+-> ssh-ed25519 dtgBNg flk9dqXjiNJJcadn58Tkra0KoYp7ALlogSgryrOukns
+Ha4UVvpR4xcYuf5zKPhStkghZby7SrDk+bwvHvO/j00
+-> ssh-ed25519 wtownA Ml9OWVPS8ikt2baMVaM7B4r/vi0tTaKTt+TmbZhr7xg
+8kuan5CA93vCAyOclC+RX/RCh7G1XbTqLuGvg04mqLA
+-> 7-grease
+mfeTWZr97OI6k9CBqi+VbmiuNRc6wZHlonUnGS+b20UKp+ZfGjmczrvPeV7VhqH/
+4SPz9GwCWlJkJAtyPhfjb8X+2VJMxRTpLNfGn4WtADb151GQ
+--- B/G2/6lOCuA82g23qiyi3ESh80fo1ejwKjTsw/wcDXA
+51m[BL(FSFkrIWCq	]%dC1cYE';b,$32S^2(Wqy,W%gU2&{U#u읧F8
+|r
\ No newline at end of file
diff --git a/hosts/tahoe/secrets/rclone/gcs_service_account.json.age b/hosts/tahoe/secrets/rclone/gcs_service_account.json.age
new file mode 100644
index 0000000..ff5260f
--- /dev/null
+++ b/hosts/tahoe/secrets/rclone/gcs_service_account.json.age
Binary files differdiff --git a/hosts/tahoe/secrets/restic/repo-systems.age b/hosts/tahoe/secrets/restic/repo-systems.age
new file mode 100644
index 0000000..cd39590
--- /dev/null
+++ b/hosts/tahoe/secrets/restic/repo-systems.age
@@ -0,0 +1,9 @@
+age-encryption.org/v1
+-> ssh-ed25519 dtgBNg I6aC5eB9FuJuQh0qEtjJ6Ho6UrybXBCIqeqErJtsOEc
+uo23S1l1Fb2G+vG7GI7Nc+SPCl3d0Obc3tHPeDESAuw
+-> ssh-ed25519 wtownA NoFRHiQRgQrHmTLJ5wi/rORy4J1Wf4iU6Hr+FlaFfyE
+gZsVc9ptglFYrvE4gRl+L/RpkB9uVDOeAr3z9Dk4J4I
+-> Pz-grease
+iWN7
+--- t14q3Wr5y4TZFZmwGEf6ARvo63x2AEQhU4tnhdRrLa0
+S+sHt=@}CѦO{<jM=;*+9tٱ&:4
\ No newline at end of file
diff --git a/hosts/tahoe/secrets/secrets.nix b/hosts/tahoe/secrets/secrets.nix
new file mode 100644
index 0000000..01ff035
--- /dev/null
+++ b/hosts/tahoe/secrets/secrets.nix
@@ -0,0 +1,36 @@
+let
+  fcuny_aptos =
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIdlm/qoR/dnMjZhVSTtqFzkgN3Yf9eQ3pgKMiipg+dl";
+  tahoe =
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEq1IQRvj2jofCHOO6M28w2SRdgtHU06NJvwAwv/b69F";
+  all = [ fcuny_aptos tahoe ];
+in {
+  "wireguard_privatekey.age".publicKeys = all;
+
+  "acme/credentials.age".publicKeys = all;
+  "acme/gcp_service_account.json.age" = {
+    publicKeys = all;
+    owner = "acme";
+  };
+
+  "drone/secrets.age" = {
+    publicKeys = all;
+    owner = "drone";
+  };
+
+  "syncthing/key.age" = {
+    publicKeys = all;
+    owner = "fcuny";
+  };
+
+  "syncthing/cert.age" = {
+    publicKeys = all;
+    owner = "fcuny";
+  };
+
+  "unifi/unifi-poller.age".publicKeys = all;
+
+  "restic/repo-systems.age".publicKeys = all;
+  "rclone/config.ini.age".publicKeys = all;
+  "rclone/gcs_service_account.json.age".publicKeys = all;
+}
diff --git a/hosts/tahoe/secrets/syncthing/cert.age b/hosts/tahoe/secrets/syncthing/cert.age
new file mode 100644
index 0000000..aceb120
--- /dev/null
+++ b/hosts/tahoe/secrets/syncthing/cert.age
Binary files differdiff --git a/hosts/tahoe/secrets/syncthing/key.age b/hosts/tahoe/secrets/syncthing/key.age
new file mode 100644
index 0000000..8c22933
--- /dev/null
+++ b/hosts/tahoe/secrets/syncthing/key.age
@@ -0,0 +1,10 @@
+age-encryption.org/v1
+-> ssh-ed25519 dtgBNg ChSBoRw7XwKHqNfO43UkA1mL3gYzVrt9u2CYpxw6oSI
+witLAp/ilF/wcWnGx0QReqe7mBdR3lZspzOjpEpMi1I
+-> ssh-ed25519 wtownA NdY9VIDwwMlAfw39yIMsAGUMIRghUOBWlZ4ham9DRSc
+HucEPuec5Y3MGvp3kIZa/NFWxSGPhL01qE1P4L24P8g
+-> 2/x-grease Op@o& x
+u7C9+kZlujVO76tqT07yS+pYtUa7lyTu4ksZeXhTlgAGP59Zl5tq7DkT
+--- ddK2/N4jHQ2jB1nvuQWfElP+LR+pgQW0Ozzc3n7FhSs
+<Yv(3yܲđk*r '-+wnv0|*@-Rԙ*rg[$f]X6+M6nsuD`=V{Àw2E?"yWWXP2spang?<su=rEhb^`1VX;gv˜ףp#U4@;kTô+btv򋏚5I"N1mh!8T``v[$
+:痙uj0cS(GVqtem+T>vRI
\ No newline at end of file
diff --git a/hosts/tahoe/secrets/traefik/gcp_service_account.json.age b/hosts/tahoe/secrets/traefik/gcp_service_account.json.age
new file mode 100644
index 0000000..0f99905
--- /dev/null
+++ b/hosts/tahoe/secrets/traefik/gcp_service_account.json.age
Binary files differdiff --git a/hosts/tahoe/secrets/unifi/unifi-poller.age b/hosts/tahoe/secrets/unifi/unifi-poller.age
new file mode 100644
index 0000000..4fb0e7f
--- /dev/null
+++ b/hosts/tahoe/secrets/unifi/unifi-poller.age
@@ -0,0 +1,10 @@
+age-encryption.org/v1
+-> ssh-ed25519 dtgBNg uqkCRrdoOMyrsbpfK8+7LwHZ9HAtZVmPMDHMT24mHXk
+BooBKT31kAEjWOHvx5B4g82R/Wl6f/1kp0BiEn6X6jE
+-> ssh-ed25519 wtownA 7TZMv8CNmwIbYh6tHu5hzI+YmXem+u6Ni4dJ8brAyj4
+CUPF2SgqA/Rz9bnA2w1jvoZpWKTmFrKYACySbzXHrqU
+-> *"=7-grease >"jI\ )%!Hr*2 }Br{nQX
+Zo1RbBeC8QYmLO7rPbQCxe0YUGCYsf5xN4lXpqBNS42ZPg/oeIE1ZvYTU47p5SbE
+CjuxcicfzgPApwp8o9s
+--- M8GY2JUWDT87vxiZ4RrYjJp6yUW6Gz993Ens/65PPQo
+~smwai!=Iy>F}Sb*.1&Kc
\ No newline at end of file
diff --git a/hosts/tahoe/secrets/wireguard_privatekey.age b/hosts/tahoe/secrets/wireguard_privatekey.age
new file mode 100644
index 0000000..edd8bee
--- /dev/null
+++ b/hosts/tahoe/secrets/wireguard_privatekey.age
@@ -0,0 +1,11 @@
+age-encryption.org/v1
+-> ssh-ed25519 dtgBNg qNmKLv3MGfcZrBGuX3/+WlJh/2W7ailKCl1XwC1Dczk
+6Z5ZsPmBsDVIn/CTAgujuuQMc9UgYsjOU2FjcXOgzXM
+-> ssh-ed25519 wtownA reQNIQYlaC/rWXO791VWzwdlSXe+Vo1dBU/yVLYEmhI
+0kZxEr3DfYTSl2F0UzuZkHLWq/BGd1XqBddEl4Ml9SQ
+-> kQ-grease Q^i|R~ &PWMBI U3Y<>Kji
+pSfA5OfoiOKuMhBIgliAdmVPAQg97f9ZiNUABNP8KFzZiaGY9D1Co9rkkvOA97LR
+rl3U8SfGb+RUyFB5lQZBkvH1tgz9GbakV2rRhZNGjabLO6V7NEVFa4ka3ODL4rlS
+ggM
+--- Yds61EVDl84C0IbJCRO5CRatN76JPxSauRkm8Ui8L4U
+ZFΎĀ <ܠ0X}l!+P&,:y!ZGd!vkhL;8MnvGlFJ0!
\ No newline at end of file
diff --git a/hosts/tahoe/services.nix b/hosts/tahoe/services.nix
new file mode 100644
index 0000000..0a0af9f
--- /dev/null
+++ b/hosts/tahoe/services.nix
@@ -0,0 +1,54 @@
+{ config, ... }:
+let secrets = config.age.secrets;
+in {
+  my.services = {
+    samba = {
+      enable = true;
+      publicShares = [ "/data/fast/music" "/data/fast/videos" ];
+    };
+    navidrome = {
+      enable = true;
+      vhostName = "music.fcuny.xyz";
+      musicFolder = "/data/fast/music";
+    };
+    unifi = {
+      enable = true;
+      vhostName = "unifi.fcuny.xyz";
+    };
+    prometheus = { enable = true; };
+    grafana = {
+      enable = true;
+      vhostName = "dash.fcuny.xyz";
+    };
+    gitea = {
+      enable = true;
+      stateDir = "/var/lib/gitea";
+    };
+    sourcegraph = {
+      enable = true;
+      vhostName = "cs.fcuny.xyz";
+    };
+    drone = {
+      enable = true;
+      vhostName = "drone.fcuny.xyz";
+      runners = [ "docker" "exec" ];
+      sharedSecretFile = secrets."drone/secrets".path;
+    };
+    rclone = { enable = true; };
+    nginx = { enable = true; };
+    transmission = {
+      enable = true;
+      vhostName = "bt.fcuny.xyz";
+    };
+    metrics-exporter = { enable = true; };
+    syncthing.enable = true;
+    backup = {
+      enable = true;
+      repository = "/data/slow/backups/systems";
+      timerConfig = { OnCalendar = "00:15"; };
+      passwordFile = secrets."restic/repo-systems".path;
+      paths =
+        [ "/home" "/data/fast/music" "/data/fast/photos" "/data/fast/videos" ];
+    };
+  };
+}
diff --git a/lib/default.nix b/lib/default.nix
new file mode 100644
index 0000000..4331bf3
--- /dev/null
+++ b/lib/default.nix
@@ -0,0 +1,35 @@
+{ inputs }:
+
+{
+  mkSystem =
+    { hostname
+    , system
+    }:
+    inputs.nixpkgs.lib.nixosSystem {
+      inherit system;
+      specialArgs = {
+        inherit inputs system hostname;
+      };
+      modules = [
+        ../modules
+        ../profiles
+        ../hosts/${hostname}
+        ./private-wireguard.nix
+        {
+          networking.hostName = hostname;
+          nixpkgs = {
+            config.allowUnfree = true;
+            overlays = [
+              inputs.emacs-overlay.overlay
+              inputs.nur.overlay
+            ];
+          };
+          # Add each input as a registry
+          nix.registry = inputs.nixpkgs.lib.mapAttrs'
+            (n: v:
+              inputs.nixpkgs.lib.nameValuePair (n) ({ flake = v; }))
+            inputs;
+        }
+      ];
+    };
+}
diff --git a/lib/private-wireguard.nix b/lib/private-wireguard.nix
new file mode 100644
index 0000000..706dfd8
--- /dev/null
+++ b/lib/private-wireguard.nix
@@ -0,0 +1,41 @@
+{ lib, hostname, config, ... }:
+
+let
+  inherit (lib) mkEnableOption mkOption mkIf types;
+  inherit (builtins) readFile fromTOML fromJSON;
+  secrets = config.age.secrets;
+  cfg = config.networking.private-wireguard;
+  port = 51871;
+  wgcfg = fromTOML (readFile ./../configs/wireguard.toml);
+  allPeers = wgcfg.peers;
+  thisPeer = allPeers."${hostname}" or null;
+  otherPeers = lib.filterAttrs (n: v: n != hostname) allPeers;
+in {
+  options.networking.private-wireguard = {
+    enable = mkEnableOption "Enable private wireguard vpn connection";
+  };
+
+  config = lib.mkIf cfg.enable {
+    networking = {
+      wireguard.interfaces.wg0 = {
+        listenPort = port;
+        privateKeyFile = secrets."wireguard_privatekey".path;
+        ips = [
+          "${wgcfg.subnet4}.${toString thisPeer.ipv4}/${toString wgcfg.mask4}"
+        ];
+
+        peers = lib.mapAttrsToList (name: peer:
+          {
+            allowedIPs = [
+              "${wgcfg.subnet4}.${toString peer.ipv4}/${toString wgcfg.mask4}"
+            ];
+            publicKey = peer.key;
+          } // lib.optionalAttrs (peer ? externalIp) {
+            endpoint = "${peer.externalIp}:${toString port}";
+          } // lib.optionalAttrs (!(thisPeer ? externalIp)) {
+            persistentKeepalive = 10;
+          }) otherPeers;
+      };
+    };
+  };
+}
diff --git a/modules/default.nix b/modules/default.nix
new file mode 100644
index 0000000..0885f69
--- /dev/null
+++ b/modules/default.nix
@@ -0,0 +1,23 @@
+{ lib, ... }:
+
+{
+  imports = [ ./hardware ./system ./services ./home ./programs ./secrets ];
+
+  options.my = with lib; {
+    user = {
+      name = mkOption {
+        type = types.str;
+        default = "fcuny";
+        example = "franck";
+        description = "my username";
+      };
+
+      home = {
+        enable = mkEnableOption {
+          description = "home-manager configuration";
+          default = true;
+        };
+      };
+    };
+  };
+}
diff --git a/modules/hardware/amd/default.nix b/modules/hardware/amd/default.nix
new file mode 100644
index 0000000..05362db
--- /dev/null
+++ b/modules/hardware/amd/default.nix
@@ -0,0 +1,13 @@
+{ config, lib, ... }:
+let cfg = config.my.hardware.amd;
+in {
+  options.my.hardware.amd = with lib; {
+    enable = mkEnableOption "AMD related configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    # Enable microcode update
+    hardware.cpu.amd.updateMicrocode = true;
+    boot.kernelModules = [ "kvm-amd" ];
+  };
+}
diff --git a/modules/hardware/bluetooth/default.nix b/modules/hardware/bluetooth/default.nix
new file mode 100644
index 0000000..cfb9a25
--- /dev/null
+++ b/modules/hardware/bluetooth/default.nix
@@ -0,0 +1,64 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.hardware.bluetooth;
+in {
+  options.my.hardware.bluetooth = with lib; {
+    enable = mkEnableOption "bluetooth configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    hardware.bluetooth.enable = true;
+    services.blueman.enable = true;
+
+    hardware.pulseaudio = {
+      extraModules = [ pkgs.pulseaudio-modules-bt ];
+      package = pkgs.pulseaudioFull;
+    };
+
+    environment.etc = {
+      "wireplumber/bluetooth.lua.d/50-bluez-config.lua".text = ''
+        bluez_monitor.properties = {
+          ["bluez5.headset-roles"] = "[ hsp_hs hsp_ag hfp_hf hfp_ag ]"
+          -- mSBC provides better audio + microphone
+          ["bluez5.enable-msbc"] = true,
+          -- SBC XQ provides better audio
+          ["bluez5.enable-sbc-xq"] = true,
+          -- Hardware volume control
+          ["bluez5.enable-hw-volume"] = true,
+        }
+      '';
+    };
+
+    services.pipewire = {
+      media-session.config.bluez-monitor.rules = [
+        {
+          # Matches all cards
+          matches = [{ "device.name" = "~bluez_card.*"; }];
+          actions = {
+            "update-props" = {
+              "bluez5.reconnect-profiles" = [ "hfp_hf" "hsp_hs" "a2dp_sink" ];
+              # mSBC provides better audio + microphone
+              "bluez5.msbc-support" = true;
+              # SBC XQ provides better audio
+              "bluez5.sbc-xq-support" = true;
+            };
+          };
+        }
+        {
+          matches = [
+            # Matches all sources
+            {
+              "node.name" = "~bluez_input.*";
+            }
+            # Matches all outputs
+            { "node.name" = "~bluez_output.*"; }
+          ];
+          actions = { "node.pause-on-idle" = false; };
+        }
+      ];
+    };
+
+    hardware.bluetooth.settings = {
+      General = { Enable = "Source,Sink,Media,Socket"; };
+    };
+  };
+}
diff --git a/modules/hardware/default.nix b/modules/hardware/default.nix
new file mode 100644
index 0000000..21e4713
--- /dev/null
+++ b/modules/hardware/default.nix
@@ -0,0 +1,5 @@
+{ ... }:
+
+{
+  imports = [ ./amd ./bluetooth ./intel ./ssd ./sound ./networking ];
+}
diff --git a/modules/hardware/intel/default.nix b/modules/hardware/intel/default.nix
new file mode 100644
index 0000000..9a53f35
--- /dev/null
+++ b/modules/hardware/intel/default.nix
@@ -0,0 +1,13 @@
+{ config, lib, ... }:
+let cfg = config.my.hardware.intel;
+in {
+  options.my.hardware.intel = with lib; {
+    enable = mkEnableOption "intel related configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    # Enable microcode update
+    hardware.cpu.intel.updateMicrocode = true;
+    boot.kernelModules = [ "kvm-intel" ];
+  };
+}
diff --git a/modules/hardware/networking/default.nix b/modules/hardware/networking/default.nix
new file mode 100644
index 0000000..d19388b
--- /dev/null
+++ b/modules/hardware/networking/default.nix
@@ -0,0 +1,11 @@
+{ config, lib, ... }:
+let cfg = config.my.hardware.networking;
+in {
+  options.my.hardware.networking = with lib; {
+    wireless = { enable = mkEnableOption "wireless configuration"; };
+  };
+
+  config = lib.mkMerge [
+    (lib.mkIf cfg.wireless.enable { networking.wireless.iwd.enable = true; })
+  ];
+}
diff --git a/modules/hardware/sound/default.nix b/modules/hardware/sound/default.nix
new file mode 100644
index 0000000..dc9f079
--- /dev/null
+++ b/modules/hardware/sound/default.nix
@@ -0,0 +1,36 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.hardware.sound;
+in {
+  options.my.hardware.sound = with lib; {
+    pipewire = { enable = mkEnableOption "pipewire configuration"; };
+  };
+
+  config = lib.mkIf cfg.pipewire.enable {
+    sound.enable = true;
+
+    # RealtimeKit is recommended
+    security.rtkit.enable = true;
+
+    environment.systemPackages = with pkgs; [
+      # We install it to get access to pactl. It isn't enabled or run as a service.
+      pulseaudio
+      pavucontrol
+      easyeffects
+    ];
+
+    services.pipewire = {
+      enable = true;
+
+      alsa = {
+        enable = true;
+        support32Bit = true;
+      };
+
+      pulse = { enable = true; };
+
+      jack = { enable = true; };
+    };
+
+    hardware.pulseaudio.enable = false;
+  };
+}
diff --git a/modules/hardware/ssd/default.nix b/modules/hardware/ssd/default.nix
new file mode 100644
index 0000000..935c217
--- /dev/null
+++ b/modules/hardware/ssd/default.nix
@@ -0,0 +1,5 @@
+{ ... }:
+
+{
+  services.fstrim.enable = true;
+}
diff --git a/modules/home/default.nix b/modules/home/default.nix
new file mode 100644
index 0000000..0261128
--- /dev/null
+++ b/modules/home/default.nix
@@ -0,0 +1,27 @@
+{ config, inputs, lib, ... }:
+let
+  actualPath = [ "home-manager" "users" config.my.user.name "my" "home" ];
+  aliasPath = [ "my" "home" ];
+
+  cfg = config.my.user.home;
+in {
+  imports = [
+    inputs.home-manager.nixosModule # enable home-manager options
+    (lib.mkAliasOptionModule aliasPath
+      actualPath) # simplify setting home options
+  ];
+
+  config = {
+    home-manager = {
+      # Not a fan of out-of-directory imports, but this is a good exception
+      users.${config.my.user.name} = import ../../home;
+
+      # Nix Flakes compatibility
+      useGlobalPkgs = true;
+      useUserPackages = true;
+
+      # Forward inputs to home-manager configuration
+      extraSpecialArgs = { inherit inputs; };
+    };
+  };
+}
diff --git a/modules/programs/default.nix b/modules/programs/default.nix
new file mode 100644
index 0000000..2de6855
--- /dev/null
+++ b/modules/programs/default.nix
@@ -0,0 +1,5 @@
+{ ... }:
+
+{
+  imports = [ ./sway ];
+}
diff --git a/modules/programs/sway/default.nix b/modules/programs/sway/default.nix
new file mode 100644
index 0000000..1fb4c00
--- /dev/null
+++ b/modules/programs/sway/default.nix
@@ -0,0 +1,25 @@
+{ pkgs, config, lib, ... }:
+let cfg = config.my.programs.sway;
+in {
+  options.my.programs.sway = with lib; {
+    enable = mkEnableOption "sway configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.sway = {
+      enable = true;
+      wrapperFeatures.gtk = true;
+      extraPackages = with pkgs; [
+        brightnessctl
+        polkit_gnome
+        xsettingsd
+        swaylock
+        swayidle
+        wl-clipboard
+      ];
+      extraSessionCommands = ''
+        export MOZ_ENABLE_WAYLAND=1
+      '';
+    };
+  };
+}
diff --git a/modules/secrets/default.nix b/modules/secrets/default.nix
new file mode 100644
index 0000000..296f5fc
--- /dev/null
+++ b/modules/secrets/default.nix
@@ -0,0 +1,29 @@
+{ config, inputs, lib, options, ... }:
+with builtins;
+with lib;
+let
+  secretsDir = "${toString ../../hosts}/${config.networking.hostName}/secrets";
+  secretsFile = "${secretsDir}/secrets.nix";
+in {
+  imports = [ inputs.agenix.nixosModules.age ];
+
+  config.age = {
+    secrets = let
+      toName = lib.removeSuffix ".age";
+      userExists = u: builtins.hasAttr u config.users.users;
+      # Only set the user if it exists, to avoid warnings
+      userIfExists = u: if userExists u then u else "root";
+      toSecret = name:
+        { owner ? "root", ... }: {
+          file = "${secretsDir}/${name}";
+          owner = lib.mkDefault (userIfExists owner);
+        };
+    in if pathExists secretsFile then
+      mapAttrs' (n: v: nameValuePair (toName n) (toSecret n v))
+      (import secretsFile)
+    else
+      { };
+    identityPaths = options.age.identityPaths.default ++ (filter pathExists
+      [ "${config.users.users.fcuny.home}/.ssh/id_ed25519" ]);
+  };
+}
diff --git a/modules/services/avahi/default.nix b/modules/services/avahi/default.nix
new file mode 100644
index 0000000..bef6b17
--- /dev/null
+++ b/modules/services/avahi/default.nix
@@ -0,0 +1,14 @@
+{ config, pkgs, lib, ... }:
+let cfg = config.my.services.avahi;
+in {
+  options.my.services.avahi = with lib; {
+    enable = mkEnableOption "avahi service";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.avahi.enable = true;
+    # Important to resolve .local domains of printers, otherwise you get an error
+    # like  "Impossible to connect to XXX.local: Name or service not known"
+    services.avahi.nssmdns = true;
+  };
+}
diff --git a/modules/services/backup/default.nix b/modules/services/backup/default.nix
new file mode 100644
index 0000000..2db1aa8
--- /dev/null
+++ b/modules/services/backup/default.nix
@@ -0,0 +1,91 @@
+{ config, pkgs, lib, ... }:
+let cfg = config.my.services.backup;
+in {
+  options.my.services.backup = with lib; {
+    enable = mkEnableOption "Enable backups for this host";
+
+    repository = mkOption {
+      type = types.str;
+      example = "/data/slow/backups/system";
+      description = "The repository to back up to";
+    };
+
+    passwordFile = mkOption {
+      type = types.path;
+      example = "/var/lib/restic/password.txt";
+      description = "Read the repository's password from this path";
+    };
+
+    paths = mkOption {
+      type = with types; listOf str;
+      default = [ ];
+      example = [ "/var/lib" "/home" ];
+      description = "Paths to backup";
+    };
+
+    exclude = mkOption {
+      type = with types; listOf str;
+      default = [ ];
+      example = [
+        # very large paths
+        "/var/lib/docker"
+        "/var/lib/systemd"
+        "/var/lib/libvirt"
+
+        # temporary files created by `cargo` and `go build`
+        "**/target"
+        "/home/*/go/bin"
+        "/home/*/go/pkg"
+      ];
+      description = "Paths to exclude from backup";
+    };
+
+    pruneOpts = mkOption {
+      type = with types; listOf str;
+      default = [
+        "--keep-last 10"
+        "--keep-hourly 24"
+        "--keep-daily 7"
+        "--keep-weekly 5"
+        "--keep-monthly 12"
+        "--keep-yearly 100"
+      ];
+      example = [ "--keep-last 5" "--keep-weekly 2" ];
+      description = ''
+        List of options to give to the `forget` subcommand after a backup.
+      '';
+    };
+
+    timerConfig = mkOption {
+      # NOTE: I do not know how to cleanly set the type
+      default = { OnCalendar = "daily"; };
+      example = {
+        OnCalendar = "00:05";
+        RandomizedDelaySec = "5h";
+      };
+      description = ''
+        When to run the backup. See man systemd.timer for details.
+      '';
+    };
+
+    user = mkOption {
+      type = types.str;
+      default = "root";
+      description = ''
+        As which user the backup should run.
+      '';
+      example = "postgresql";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.restic.backups.host = {
+      # Take care of included and excluded files
+      paths = cfg.paths;
+      extraBackupArgs = [ "--verbose=2" ];
+      # Take care of creating the repository if it doesn't exist
+      initialize = true;
+      inherit (cfg) passwordFile pruneOpts timerConfig repository user;
+    };
+  };
+}
diff --git a/modules/services/default.nix b/modules/services/default.nix
new file mode 100644
index 0000000..538e564
--- /dev/null
+++ b/modules/services/default.nix
@@ -0,0 +1,27 @@
+{ ... }:
+
+{
+  imports = [
+    ./avahi
+    ./backup
+    ./drone
+    ./fwupd
+    ./gitea
+    ./gnome
+    ./grafana
+    ./metrics-exporter
+    ./navidrome
+    ./nginx
+    ./prometheus
+    ./rclone
+    ./samba
+    ./sourcegraph
+    ./ssh-server
+    ./syncthing
+    ./tailscale
+    ./thermald
+    ./tlp
+    ./transmission
+    ./unifi
+  ];
+}
diff --git a/modules/services/drone/default.nix b/modules/services/drone/default.nix
new file mode 100644
index 0000000..dedf120
--- /dev/null
+++ b/modules/services/drone/default.nix
@@ -0,0 +1,39 @@
+# A docker-based CI/CD system
+#
+# Inspired by [1]
+# [1]: https://github.com/Mic92/dotfiles/blob/master/nixos/eve/modules/drone.nix
+{ lib, ... }: {
+  imports = [ ./runner-docker ./runner-exec ./server ];
+
+  options.my.services.drone = with lib; {
+    enable = mkEnableOption "Drone CI";
+    vhostName = mkOption {
+      type = types.str;
+      example = "drone.fcuny.net";
+      description = "Name for the virtual host";
+    };
+    runners = mkOption {
+      type = with types; listOf (enum [ "exec" "docker" ]);
+      default = [ ];
+      example = [ "exec" "docker" ];
+      description = "Types of runners to enable";
+    };
+    admin = mkOption {
+      type = types.str;
+      default = "fcuny";
+      example = "admin";
+      description = "Name of the admin user";
+    };
+    port = mkOption {
+      type = types.port;
+      default = 3030;
+      example = 8080;
+      description = "Internal port of the Drone UI";
+    };
+    sharedSecretFile = mkOption {
+      type = types.str;
+      example = "/run/secrets/drone-rpc.env";
+      description = "Shared RPC secret to inject into server and runners";
+    };
+  };
+}
diff --git a/modules/services/drone/runner-docker/default.nix b/modules/services/drone/runner-docker/default.nix
new file mode 100644
index 0000000..d701c18
--- /dev/null
+++ b/modules/services/drone/runner-docker/default.nix
@@ -0,0 +1,39 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.services.drone;
+  hasRunner = (name: builtins.elem name cfg.runners);
+  dockerPkg = pkgs.drone-runner-docker;
+in {
+  config = lib.mkIf (cfg.enable && hasRunner "docker") {
+    systemd.services.drone-runner-docker = {
+      wantedBy = [ "multi-user.target" ];
+      after = [ "docker.socket" ]; # Needs the socket to be available
+      # might break deployment
+      restartIfChanged = false;
+      confinement.enable = true;
+      serviceConfig = {
+        Environment = [
+          "DRONE_SERVER_HOST=${cfg.vhostName}"
+          "DRONE_SERVER_PROTO=https"
+          "DRONE_RUNNER_CAPACITY=10"
+          "CLIENT_DRONE_RPC_HOST=127.0.0.1:${toString cfg.port}"
+        ];
+        BindPaths = [ "/var/run/docker.sock" ];
+        EnvironmentFile = [ cfg.sharedSecretFile ];
+        ExecStart = "${dockerPkg}/bin/drone-runner-docker";
+        User = "drone-runner-docker";
+        Group = "drone-runner-docker";
+      };
+    };
+
+    # Make sure it is activated in that case
+    virtualisation.docker.enable = true;
+
+    users.users.drone-runner-docker = {
+      isSystemUser = true;
+      group = "drone-runner-docker";
+      extraGroups = [ "docker" ]; # Give access to the daemon
+    };
+    users.groups.drone-runner-docker = { };
+  };
+}
diff --git a/modules/services/drone/runner-exec/default.nix b/modules/services/drone/runner-exec/default.nix
new file mode 100644
index 0000000..9222200
--- /dev/null
+++ b/modules/services/drone/runner-exec/default.nix
@@ -0,0 +1,54 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.services.drone;
+  hasRunner = (name: builtins.elem name cfg.runners);
+  execPkg = pkgs.drone-runner-exec;
+in {
+  config = lib.mkIf (cfg.enable && hasRunner "exec") {
+    systemd.services.drone-runner-exec = {
+      wantedBy = [ "multi-user.target" ];
+      # might break deployment
+      restartIfChanged = false;
+      confinement.enable = true;
+      confinement.packages = with pkgs; [ git gnutar bash nixUnstable gzip ];
+      path = with pkgs; [ git gnutar bash nixUnstable gzip ];
+      serviceConfig = {
+        Environment = [
+          "DRONE_SERVER_HOST=${cfg.vhostName}"
+          "DRONE_SERVER_PROTO=https"
+          "DRONE_RUNNER_CAPACITY=10"
+          "CLIENT_DRONE_RPC_HOST=127.0.0.1:${toString cfg.port}"
+          "NIX_REMOTE=daemon"
+          "PAGER=cat"
+        ];
+        BindPaths = [ "/nix/var/nix/daemon-socket/socket" ];
+        BindReadOnlyPaths = [
+          "/etc/resolv.conf:/etc/resolv.conf"
+          "/etc/resolvconf.conf:/etc/resolvconf.conf"
+          "/etc/passwd:/etc/passwd"
+          "/etc/group:/etc/group"
+          "/nix/var/nix/profiles/system/etc/nix:/etc/nix"
+          "${
+            config.environment.etc."ssl/certs/ca-certificates.crt".source
+          }:/etc/ssl/certs/ca-certificates.crt"
+          "${
+            config.environment.etc."ssh/ssh_known_hosts".source
+          }:/etc/ssh/ssh_known_hosts"
+          "/etc/machine-id"
+          # channels are dynamic paths in the nix store, therefore we need to bind mount the whole thing
+          "/nix/"
+        ];
+        EnvironmentFile = [ cfg.sharedSecretFile ];
+        ExecStart = "${execPkg}/bin/drone-runner-exec";
+        User = "drone-runner-exec";
+        Group = "drone-runner-exec";
+      };
+    };
+
+    users.users.drone-runner-exec = {
+      isSystemUser = true;
+      group = "drone-runner-exec";
+    };
+    users.groups.drone-runner-exec = { };
+  };
+}
diff --git a/modules/services/drone/server/default.nix b/modules/services/drone/server/default.nix
new file mode 100644
index 0000000..abd323f
--- /dev/null
+++ b/modules/services/drone/server/default.nix
@@ -0,0 +1,52 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.services.drone;
+  secrets = config.age.secrets;
+in {
+  config = lib.mkIf cfg.enable {
+    systemd.services.drone-server = {
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        EnvironmentFile = [ cfg.sharedSecretFile ];
+        Environment = [
+          "DRONE_DATABASE_DRIVER=sqlite3"
+          "DRONE_DATABASE_DATASOURCE=/var/lib/drone-server/drone.sqlite"
+          "DRONE_SERVER_HOST=${cfg.vhostName}"
+          "DRONE_SERVER_PROTO=https"
+          "DRONE_SERVER_PORT=:${toString cfg.port}"
+          "DRONE_USER_CREATE=username:${cfg.admin},admin:true"
+          "DRONE_JSONNET_ENABLED=true"
+          "DRONE_STARLARK_ENABLED=true"
+        ];
+        StateDirectory = "drone-server";
+        ExecStart = "${pkgs.drone}/bin/drone-server";
+        User = "drone";
+        Group = "drone";
+      };
+    };
+
+    users.users.drone = {
+      isSystemUser = true;
+      createHome = true;
+      group = "drone";
+    };
+
+    users.groups.drone = { };
+
+    services.nginx.virtualHosts."${cfg.vhostName}" = {
+      forceSSL = true;
+      useACMEHost = cfg.vhostName;
+      locations."/" = {
+        proxyPass = "http://127.0.0.1:${toString cfg.port}";
+        proxyWebsockets = true;
+      };
+    };
+
+    security.acme.certs."${cfg.vhostName}" = {
+      dnsProvider = "gcloud";
+      credentialsFile = secrets."acme/credentials".path;
+    };
+
+    my.services.backup = { paths = [ "/var/lib/droner-server" ]; };
+  };
+}
diff --git a/modules/services/fwupd/default.nix b/modules/services/fwupd/default.nix
new file mode 100644
index 0000000..52dc13e
--- /dev/null
+++ b/modules/services/fwupd/default.nix
@@ -0,0 +1,5 @@
+{ ... }:
+
+{
+  services.fwupd.enable = true;
+}
diff --git a/modules/services/gitea/default.nix b/modules/services/gitea/default.nix
new file mode 100644
index 0000000..e5a3db7
--- /dev/null
+++ b/modules/services/gitea/default.nix
@@ -0,0 +1,63 @@
+{ config, pkgs, lib, ... }:
+let cfg = config.my.services.gitea;
+in {
+  options.my.services.gitea = with lib; {
+    enable = mkEnableOption "gitea git server";
+    stateDir = mkOption {
+      type = types.str;
+      example = "/var/lib/gitea";
+      description = "gitea base directory";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    users.users.git = {
+      description = "Gitea Service";
+      home = cfg.stateDir;
+      useDefaultShell = true;
+      group = "git";
+      isSystemUser = true;
+    };
+    users.groups.git = { };
+
+    services.gitea = {
+      enable = true;
+      user = "git";
+      domain = "git.fcuny.net";
+      appName = "git.fcuny.net";
+      rootUrl = "https://git.fcuny.net/";
+      httpAddress = "127.0.0.1";
+      httpPort = 8002;
+      log.level = "Error";
+      settings = {
+        other.SHOW_FOOTER_VERSION = false;
+        metrics.ENABLED = true;
+        metrics.ENABLED_ISSUE_BY_REPOSITORY = true;
+      };
+      dump.enable = false;
+      database = {
+        type = "sqlite3";
+        user = "git";
+      };
+    };
+
+    services.nginx.virtualHosts."git.fcuny.net" = {
+      forceSSL = true;
+      enableACME = true;
+      locations."/" = {
+        proxyPass = "http://127.0.0.1:8002";
+        proxyWebsockets = true;
+      };
+    };
+
+    services.prometheus.scrapeConfigs = [{
+      job_name = "gitea";
+      metrics_path = "/metrics";
+      scheme = "https";
+      scrape_interval = "30s";
+      static_configs = [{ targets = [ "git.fcuny.net" ]; }];
+    }];
+
+    my.services.backup = { paths = [ cfg.stateDir ]; };
+  };
+}
diff --git a/modules/services/gnome/default.nix b/modules/services/gnome/default.nix
new file mode 100644
index 0000000..448934f
--- /dev/null
+++ b/modules/services/gnome/default.nix
@@ -0,0 +1,27 @@
+{ config, pkgs, lib, ... }:
+let cfg = config.my.services.gnome;
+in {
+  options.my.services.gnome = with lib; { enable = mkEnableOption "gnome"; };
+
+  config = lib.mkIf cfg.enable {
+    services = {
+      dbus = {
+        enable = true;
+        packages = with pkgs; [ gcr gnome3.dconf gnome3.gnome-keyring ];
+      };
+
+      udev.packages = with pkgs; [ gnome3.gnome-settings-daemon ];
+
+      gvfs = {
+        enable = true;
+        package = pkgs.gnome.gvfs;
+      };
+
+      gnome = {
+        gnome-keyring.enable = true;
+        # !https://github.com/NixOS/nixpkgs/issues/16327
+        at-spi2-core.enable = true;
+      };
+    };
+  };
+}
diff --git a/modules/services/grafana/dashboards/fly-app_rev1.json b/modules/services/grafana/dashboards/fly-app_rev1.json
new file mode 100644
index 0000000..5894078
--- /dev/null
+++ b/modules/services/grafana/dashboards/fly-app_rev1.json
@@ -0,0 +1,1739 @@
+{
+  "__inputs": [],
+  "__requires": [
+    {
+      "type": "grafana",
+      "id": "grafana",
+      "name": "Grafana",
+      "version": "8.0.0"
+    },
+    {
+      "type": "panel",
+      "id": "heatmap",
+      "name": "Heatmap",
+      "version": ""
+    },
+    {
+      "type": "datasource",
+      "id": "prometheus",
+      "name": "Prometheus",
+      "version": "1.0.0"
+    },
+    {
+      "type": "panel",
+      "id": "timeseries",
+      "name": "Time series",
+      "version": ""
+    }
+  ],
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": "-- Grafana --",
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "gnetId": 14741,
+  "graphTooltip": 0,
+  "id": null,
+  "iteration": 1626702715584,
+  "links": [],
+  "panels": [
+    {
+      "collapsed": true,
+      "datasource": null,
+      "gridPos": {
+        "h": 1,
+        "w": 24,
+        "x": 0,
+        "y": 0
+      },
+      "id": 27,
+      "panels": [
+        {
+          "datasource": "${source}",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "lineInterpolation": "linear",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "auto",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "binBps"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 7,
+            "w": 8,
+            "x": 0,
+            "y": 1
+          },
+          "id": 29,
+          "options": {
+            "legend": {
+              "calcs": [],
+              "displayMode": "list",
+              "placement": "bottom"
+            },
+            "tooltip": {
+              "mode": "single"
+            }
+          },
+          "targets": [
+            {
+              "exemplar": true,
+              "expr": "sum(rate(fly_instance_net_sent_bytes{device=\"eth0\",app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"}[$__rate_interval]))",
+              "interval": "30s",
+              "legendFormat": "sent",
+              "refId": "A"
+            },
+            {
+              "exemplar": true,
+              "expr": "sum(rate(fly_instance_net_recv_bytes{device=\"eth0\",app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"}[$__rate_interval]))",
+              "hide": false,
+              "interval": "30s",
+              "legendFormat": "recv",
+              "refId": "B"
+            }
+          ],
+          "title": "Data Transfer",
+          "type": "timeseries"
+        },
+        {
+          "datasource": "${source}",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "lineInterpolation": "linear",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "auto",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              }
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 7,
+            "w": 8,
+            "x": 8,
+            "y": 1
+          },
+          "id": 31,
+          "options": {
+            "legend": {
+              "calcs": [],
+              "displayMode": "list",
+              "placement": "bottom"
+            },
+            "tooltip": {
+              "mode": "single"
+            }
+          },
+          "targets": [
+            {
+              "exemplar": true,
+              "expr": "max(max_over_time(fly_instance_load_average{minutes=\"1\",app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"}[$__rate_interval]))",
+              "interval": "30s",
+              "legendFormat": "1m",
+              "refId": "A"
+            },
+            {
+              "exemplar": true,
+              "expr": "max(max_over_time(fly_instance_load_average{minutes=\"5\",app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"}[$__rate_interval]))",
+              "hide": false,
+              "interval": "30s",
+              "legendFormat": "5m",
+              "refId": "B"
+            },
+            {
+              "exemplar": true,
+              "expr": "max(max_over_time(fly_instance_load_average{minutes=\"15\",app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"}[$__rate_interval]))",
+              "hide": false,
+              "interval": "30s",
+              "legendFormat": "15m",
+              "refId": "C"
+            }
+          ],
+          "title": "Load Average",
+          "type": "timeseries"
+        },
+        {
+          "datasource": "${source}",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "lineInterpolation": "linear",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "auto",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "mappings": [],
+              "min": 0,
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "bytes"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 7,
+            "w": 8,
+            "x": 16,
+            "y": 1
+          },
+          "id": 32,
+          "options": {
+            "legend": {
+              "calcs": [],
+              "displayMode": "list",
+              "placement": "bottom"
+            },
+            "tooltip": {
+              "mode": "single"
+            }
+          },
+          "targets": [
+            {
+              "exemplar": true,
+              "expr": "avg(fly_instance_memory_mem_total{app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"})",
+              "interval": "",
+              "legendFormat": "total",
+              "refId": "A"
+            },
+            {
+              "exemplar": true,
+              "expr": "avg(fly_instance_memory_mem_total{app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"}) - avg(fly_instance_memory_mem_free{app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"})",
+              "hide": false,
+              "interval": "",
+              "legendFormat": "used",
+              "refId": "B"
+            }
+          ],
+          "title": "Memory Usage",
+          "type": "timeseries"
+        },
+        {
+          "datasource": "${source}",
+          "description": "",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 10,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "lineInterpolation": "linear",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "auto",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "normal"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              },
+              "unit": "percent"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 7,
+            "w": 12,
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+                "showPoints": "auto",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "normal"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              }
+            },
+            "overrides": [
+              {
+                "matcher": {
+                  "id": "byName",
+                  "options": "Value"
+                },
+                "properties": [
+                  {
+                    "id": "displayName",
+                    "value": "none"
+                  }
+                ]
+              }
+            ]
+          },
+          "gridPos": {
+            "h": 6,
+            "w": 7,
+            "x": 17,
+            "y": 10
+          },
+          "id": 18,
+          "options": {
+            "legend": {
+              "calcs": [
+                "max"
+              ],
+              "displayMode": "table",
+              "placement": "bottom"
+            },
+            "tooltip": {
+              "mode": "single"
+            }
+          },
+          "targets": [
+            {
+              "exemplar": true,
+              "expr": "sum(increase(fly_edge_tls_ip_limit_reached_count{app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"})) by (ip) > 0",
+              "interval": "",
+              "legendFormat": "{{ip}}",
+              "refId": "A"
+            }
+          ],
+          "title": "IP limit reached",
+          "type": "timeseries"
+        }
+      ],
+      "title": "TLS",
+      "type": "row"
+    },
+    {
+      "collapsed": true,
+      "datasource": null,
+      "gridPos": {
+        "h": 1,
+        "w": 24,
+        "x": 0,
+        "y": 3
+      },
+      "id": 2,
+      "panels": [
+        {
+          "datasource": "${source}",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisLabel": "",
+                "axisPlacement": "auto",
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 0,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "lineInterpolation": "linear",
+                "lineWidth": 1,
+                "pointSize": 5,
+                "scaleDistribution": {
+                  "type": "linear"
+                },
+                "showPoints": "auto",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  {
+                    "color": "green",
+                    "value": null
+                  },
+                  {
+                    "color": "red",
+                    "value": 80
+                  }
+                ]
+              }
+            },
+            "overrides": [
+              {
+                "matcher": {
+                  "id": "byRegexp",
+                  "options": "/^2/"
+                },
+                "properties": [
+                  {
+                    "id": "color",
+                    "value": {
+                      "fixedColor": "green",
+                      "mode": "fixed"
+                    }
+                  }
+                ]
+              },
+              {
+                "matcher": {
+                  "id": "byRegexp",
+                  "options": "/^3/"
+                },
+                "properties": [
+                  {
+                    "id": "color",
+                    "value": {
+                      "fixedColor": "blue",
+                      "mode": "fixed"
+                    }
+                  }
+                ]
+              },
+              {
+                "matcher": {
+                  "id": "byRegexp",
+                  "options": "/^4/"
+                },
+                "properties": [
+                  {
+                    "id": "color",
+                    "value": {
+                      "fixedColor": "yellow",
+                      "mode": "fixed"
+                    }
+                  }
+                ]
+              },
+              {
+                "matcher": {
+                  "id": "byRegexp",
+                  "options": "/^5/"
+                },
+                "properties": [
+                  {
+                    "id": "color",
+                    "value": {
+                      "fixedColor": "red",
+                      "mode": "fixed"
+                    }
+                  }
+                ]
+              },
+              {
+                "matcher": {
+                  "id": "byRegexp",
+                  "options": "/^1/"
+                },
+                "properties": [
+                  {
+                    "id": "color",
+                    "value": {
+                      "fixedColor": "purple",
+                      "mode": "fixed"
+                    }
+                  }
+                ]
+              }
+            ]
+          },
+          "gridPos": {
+            "h": 8,
+            "w": 24,
+            "x": 0,
+            "y": 4
+          },
+          "id": 4,
+          "options": {
+            "legend": {
+              "calcs": [
+                "last",
+                "max"
+              ],
+              "displayMode": "table",
+              "placement": "right"
+            },
+            "tooltip": {
+              "mode": "single"
+            }
+          },
+          "targets": [
+            {
+              "exemplar": true,
+              "expr": "sum(rate(fly_edge_http_responses_count{app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"})[$__rate_interval]) by (status)",
+              "interval": "",
+              "legendFormat": "{{status}}",
+              "refId": "A"
+            }
+          ],
+          "title": "Edge Responses Per Second",
+          "type": "timeseries"
+        },
+        {
+          "cards": {
+            "cardPadding": null,
+            "cardRound": null
+          },
+          "color": {
+            "cardColor": "#b4ff00",
+            "colorScale": "sqrt",
+            "colorScheme": "interpolateSpectral",
+            "exponent": 0.5,
+            "mode": "spectrum"
+          },
+          "dataFormat": "tsbuckets",
+          "datasource": "${source}",
+          "gridPos": {
+            "h": 7,
+            "w": 8,
+            "x": 0,
+            "y": 12
+          },
+          "heatmap": {},
+          "hideZeroBuckets": true,
+          "highlightCards": true,
+          "id": 6,
+          "legend": {
+            "show": true
+          },
+          "pluginVersion": "7.3.4",
+          "reverseYBuckets": false,
+          "targets": [
+            {
+              "exemplar": true,
+              "expr": "sum(increase(fly_edge_http_response_time_seconds_bucket{app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"}[$__interval])) by (le)",
+              "format": "heatmap",
+              "interval": "1m",
+              "legendFormat": "{{le}}",
+              "refId": "A"
+            }
+          ],
+          "timeFrom": null,
+          "timeShift": null,
+          "title": "Edge Response Times",
+          "tooltip": {
+            "show": true,
+            "showHistogram": false
+          },
+          "type": "heatmap",
+          "xAxis": {
+            "show": true
+          },
+          "xBucketNumber": null,
+          "xBucketSize": null,
+          "yAxis": {
+            "decimals": null,
+            "format": "s",
+            "logBase": 1,
+            "max": null,
+            "min": null,
+            "show": true,
+            "splitFactor": null
+          },
+          "yBucketBound": "auto",
+          "yBucketNumber": null,
+          "yBucketSize": null
+        },
+        {
+          "cards": {
+            "cardPadding": null,
+            "cardRound": null
+          },
+          "color": {
+            "cardColor": "#b4ff00",
+            "colorScale": "sqrt",
+            "colorScheme": "interpolateSpectral",
+            "exponent": 0.5,
+            "mode": "spectrum"
+          },
+          "dataFormat": "tsbuckets",
+          "datasource": "${source}",
+          "gridPos": {
+            "h": 7,
+            "w": 8,
+            "x": 8,
+            "y": 12
+          },
+          "heatmap": {},
+          "hideZeroBuckets": true,
+          "highlightCards": true,
+          "id": 7,
+          "legend": {
+            "show": true
+          },
+          "pluginVersion": "7.3.4",
+          "reverseYBuckets": false,
+          "targets": [
+            {
+              "exemplar": true,
+              "expr": "sum(increase(fly_app_http_response_time_seconds_bucket{app=~\"^$app$\",region=~\"^$region$\",host=~\"^$host$\"}[$__interval])) by (le) > 0",
+              "format": "heatmap",
+              "interval": "1m",
+              "legendFormat": "{{le}}",
+              "refId": "A"
+            }
+          ],
+          "timeFrom": null,
+          "timeShift": null,
+          "title": "App Response Times",
+          "tooltip": {
+            "show": true,
+            "showHistogram": false
+          },
+          "type": "heatmap",
+          "xAxis": {
+            "show": true
+          },
+          "xBucketNumber": null,
+          "xBucketSize": null,
+          "yAxis": {
+            "decimals": null,
+            "format": "s",
+            "logBase": 1,
+            "max": null,
+            "min": null,
+            "show": true,
+            "splitFactor": null
+          },
+          "yBucketBound": "auto",
+          "yBucketNumber": null,
+          "yBucketSize": null
+        }
+      ],
+      "title": "HTTP",
+      "type": "row"
+    }
+  ],
+  "refresh": "1m",
+  "schemaVersion": 30,
+  "style": "dark",
+  "tags": [],
+  "templating": {
+    "list": [
+      {
+        "current": {
+          "selected": false,
+          "text": "Fly Web Org",
+          "value": "Fly Web Org"
+        },
+        "description": null,
+        "error": null,
+        "hide": 0,
+        "includeAll": false,
+        "label": null,
+        "multi": false,
+        "name": "source",
+        "options": [],
+        "query": "prometheus",
+        "queryValue": "",
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "type": "datasource"
+      },
+      {
+        "allValue": ".*",
+        "current": {},
+        "datasource": "${source}",
+        "definition": "label_values(region)",
+        "description": null,
+        "error": null,
+        "hide": 0,
+        "includeAll": true,
+        "label": null,
+        "multi": false,
+        "name": "region",
+        "options": [],
+        "query": {
+          "query": "label_values(region)",
+          "refId": "StandardVariableQuery"
+        },
+        "refresh": 2,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 1,
+        "type": "query"
+      },
+      {
+        "allValue": ".*",
+        "current": {},
+        "datasource": "${source}",
+        "definition": "label_values({region=~\"^$region$\"}, host)",
+        "description": null,
+        "error": null,
+        "hide": 0,
+        "includeAll": true,
+        "label": null,
+        "multi": false,
+        "name": "host",
+        "options": [],
+        "query": {
+          "query": "label_values({region=~\"^$region$\"}, host)",
+          "refId": "StandardVariableQuery"
+        },
+        "refresh": 2,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 0,
+        "type": "query"
+      },
+      {
+        "allValue": ".*",
+        "current": {},
+        "datasource": "${source}",
+        "definition": "label_values(app)",
+        "description": null,
+        "error": null,
+        "hide": 0,
+        "includeAll": true,
+        "label": "",
+        "multi": false,
+        "name": "app",
+        "options": [],
+        "query": {
+          "query": "label_values(app)",
+          "refId": "StandardVariableQuery"
+        },
+        "refresh": 2,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 1,
+        "type": "query"
+      }
+    ]
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "",
+  "title": "Fly App",
+  "uid": "eiRE4umnz",
+  "version": 21,
+  "description": "Basic metrics for your app on Fly.io"
+}
\ No newline at end of file
diff --git a/modules/services/grafana/dashboards/gitea.json b/modules/services/grafana/dashboards/gitea.json
new file mode 100644
index 0000000..2fbdef0
--- /dev/null
+++ b/modules/services/grafana/dashboards/gitea.json
@@ -0,0 +1,1176 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "$$hashKey": "object:2075",
+        "builtIn": 1,
+        "datasource": "-- Grafana --",
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "target": {
+          "limit": 100,
+          "matchAny": false,
+          "tags": [],
+          "type": "dashboard"
+        },
+        "type": "dashboard"
+      }
+    ]
+  },
+  "description": "Monitor Gitea server",
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "gnetId": 13192,
+  "graphTooltip": 0,
+  "id": 9,
+  "links": [],
+  "liveNow": false,
+  "panels": [
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P1809F7CD0C75ACF3"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 1,
+      "fillGradient": 5,
+      "gridPos": {
+        "h": 6,
+        "w": 8,
+        "x": 0,
+        "y": 0
+      },
+      "hiddenSeries": false,
+      "id": 31,
+      "legend": {
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": false,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 0,
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "8.3.4",
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "process_resident_memory_bytes{job=\"gitea\"}",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "thresholds": [],
+      "timeRegions": [],
+      "title": "Resident memory",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "transparent": true,
+      "type": "graph",
+      "xaxis": {
+        "mode": "time",
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "logBase": 1,
+          "show": true
+        },
+        {
+          "format": "short",
+          "logBase": 1,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P1809F7CD0C75ACF3"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 1,
+      "fillGradient": 5,
+      "gridPos": {
+        "h": 6,
+        "w": 8,
+        "x": 8,
+        "y": 0
+      },
+      "hiddenSeries": false,
+      "id": 32,
+      "legend": {
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": false,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 0,
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "8.3.4",
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "process_cpu_seconds_total{job=\"gitea\"}",
+          "instant": false,
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "thresholds": [],
+      "timeRegions": [],
+      "title": "CPU time",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "transparent": true,
+      "type": "graph",
+      "xaxis": {
+        "mode": "time",
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "logBase": 1,
+          "show": true
+        },
+        {
+          "format": "short",
+          "logBase": 1,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P1809F7CD0C75ACF3"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 1,
+      "fillGradient": 5,
+      "gridPos": {
+        "h": 6,
+        "w": 8,
+        "x": 16,
+        "y": 0
+      },
+      "hiddenSeries": false,
+      "id": 33,
+      "legend": {
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": false,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 0,
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "8.3.4",
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "process_open_fds{job=\"gitea\"}",
+          "format": "time_series",
+          "instant": false,
+          "interval": "",
+          "intervalFactor": 1,
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "thresholds": [],
+      "timeRegions": [],
+      "title": "Open FDS",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "transparent": true,
+      "type": "graph",
+      "xaxis": {
+        "mode": "time",
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "logBase": 1,
+          "show": true
+        },
+        {
+          "format": "short",
+          "logBase": 1,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false
+      }
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P1809F7CD0C75ACF3"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "dark-blue",
+                "value": null
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 6,
+        "x": 0,
+        "y": 6
+      },
+      "id": 2,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "none",
+        "justifyMode": "center",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "textMode": "auto"
+      },
+      "pluginVersion": "8.3.4",
+      "targets": [
+        {
+          "expr": "gitea_accesses",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Accesses",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P1809F7CD0C75ACF3"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "dark-blue",
+                "value": null
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 6,
+        "x": 6,
+        "y": 6
+      },
+      "id": 18,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "none",
+        "justifyMode": "center",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "textMode": "auto"
+      },
+      "pluginVersion": "8.3.4",
+      "targets": [
+        {
+          "expr": "gitea_repositories",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Repositories",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P1809F7CD0C75ACF3"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "mappings": [],
+          "thresholds": {
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+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Organizations",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P1809F7CD0C75ACF3"
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+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Teams",
+      "type": "stat"
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+        "uid": "P1809F7CD0C75ACF3"
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+          "values": false
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+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Follows",
+      "type": "stat"
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+        "uid": "P1809F7CD0C75ACF3"
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+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of PublicKeys",
+      "type": "stat"
+    },
+    {
+      "datasource": {
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+        "uid": "P1809F7CD0C75ACF3"
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+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Stars",
+      "type": "stat"
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+    {
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+        "uid": "P1809F7CD0C75ACF3"
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+          "legendFormat": "",
+          "refId": "A"
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+      "type": "stat"
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+        "uid": "P1809F7CD0C75ACF3"
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+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Releases",
+      "type": "stat"
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+        "uid": "P1809F7CD0C75ACF3"
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+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Comments",
+      "type": "stat"
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+        "uid": "P1809F7CD0C75ACF3"
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+      "targets": [
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+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Milestones",
+      "type": "stat"
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+    {
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+        "type": "prometheus",
+        "uid": "P1809F7CD0C75ACF3"
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+          "expr": "gitea_watches",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "Number of Watches",
+      "type": "stat"
+    }
+  ],
+  "refresh": "1m",
+  "schemaVersion": 34,
+  "style": "dark",
+  "tags": [],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {
+    "refresh_intervals": [
+      "30s",
+      "1m",
+      "5m",
+      "15m",
+      "30m",
+      "1h",
+      "2h",
+      "1d"
+    ]
+  },
+  "timezone": "browser",
+  "title": "Gitea",
+  "uid": "nNq1Iw5Gz",
+  "version": 1,
+  "weekStart": ""
+}
diff --git a/modules/services/grafana/dashboards/nas.json b/modules/services/grafana/dashboards/nas.json
new file mode 100644
index 0000000..61daa3b
--- /dev/null
+++ b/modules/services/grafana/dashboards/nas.json
@@ -0,0 +1,4923 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": "-- Grafana --",
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "target": {
+          "limit": 100,
+          "matchAny": false,
+          "tags": [],
+          "type": "dashboard"
+        },
+        "type": "dashboard"
+      }
+    ]
+  },
+  "description": "system and application metrics for our NAS",
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 1,
+  "id": 2,
+  "links": [],
+  "liveNow": false,
+  "panels": [
+    {
+      "collapsed": false,
+      "datasource": {
+        "type": "prometheus",
+        "uid": "PBFA97CFB590B2093"
+      },
+      "gridPos": {
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+        "w": 24,
+        "x": 0,
+        "y": 0
+      },
+      "id": 9,
+      "panels": [],
+      "title": "overview",
+      "type": "row"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "PBFA97CFB590B2093"
+      },
+      "description": "Busy state of all CPU cores together (1 min average)",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [
+            {
+              "options": {
+                "match": "null",
+                "result": {
+                  "text": "N/A"
+                }
+              },
+              "type": "special"
+            }
+          ],
+          "max": 100,
+          "min": 0,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "rgba(50, 172, 45, 0.97)",
+                "value": null
+              },
+              {
+                "color": "rgba(237, 129, 40, 0.89)",
+                "value": 85
+              },
+              {
+                "color": "rgba(245, 54, 54, 0.9)",
+                "value": 95
+              }
+            ]
+          },
+          "unit": "percent"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 4,
+        "x": 0,
+        "y": 1
+      },
+      "id": 60,
+      "links": [],
+      "maxDataPoints": 100,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "horizontal",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "text": {},
+        "textMode": "auto"
+      },
+      "pluginVersion": "8.3.3",
+      "targets": [
+        {
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+          "expr": "avg(node_load1{instance=\"tahoe\"}) /  count(count(node_cpu_seconds_total{instance=\"tahoe\"}) by (cpu)) * 100",
+          "hide": false,
+          "interval": "",
+          "intervalFactor": 1,
+          "legendFormat": "",
+          "refId": "A",
+          "step": 900
+        }
+      ],
+      "title": "CPU system load",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "PBFA97CFB590B2093"
+      },
+      "description": "Busy state of all CPU cores together",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [
+            {
+              "options": {
+                "match": "null",
+                "result": {
+                  "text": "N/A"
+                }
+              },
+              "type": "special"
+            }
+          ],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "rgba(50, 172, 45, 0.97)",
+                "value": null
+              },
+              {
+                "color": "rgba(237, 129, 40, 0.89)",
+                "value": 85
+              },
+              {
+                "color": "rgba(245, 54, 54, 0.9)",
+                "value": 95
+              }
+            ]
+          },
+          "unit": "percent"
+        },
+        "overrides": []
+      },
+      "gridPos": {
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+            "alertThreshold": true
+          },
+          "percentage": false,
+          "pluginVersion": "8.0.6",
+          "pointradius": 2,
+          "points": false,
+          "renderer": "flot",
+          "seriesOverrides": [],
+          "spaceLength": 10,
+          "stack": false,
+          "steppedLine": false,
+          "targets": [
+            {
+              "expr": "rate(rest_server_blob_read_total{instance=\"tahoe:8010\"}[60s])",
+              "legendFormat": "{{type}}",
+              "refId": "A"
+            }
+          ],
+          "thresholds": [],
+          "timeRegions": [],
+          "title": "Blob Read Operations",
+          "tooltip": {
+            "shared": true,
+            "sort": 0,
+            "value_type": "individual"
+          },
+          "type": "graph",
+          "xaxis": {
+            "mode": "time",
+            "show": true,
+            "values": []
+          },
+          "yaxes": [
+            {
+              "format": "short",
+              "logBase": 1,
+              "show": true
+            },
+            {
+              "format": "short",
+              "logBase": 1,
+              "show": true
+            }
+          ],
+          "yaxis": {
+            "align": false
+          }
+        },
+        {
+          "aliasColors": {},
+          "bars": false,
+          "dashLength": 10,
+          "dashes": false,
+          "fieldConfig": {
+            "defaults": {
+              "links": []
+            },
+            "overrides": []
+          },
+          "fill": 1,
+          "fillGradient": 0,
+          "gridPos": {
+            "h": 8,
+            "w": 12,
+            "x": 0,
+            "y": 111
+          },
+          "hiddenSeries": false,
+          "id": 74,
+          "legend": {
+            "avg": false,
+            "current": false,
+            "max": false,
+            "min": false,
+            "show": true,
+            "total": false,
+            "values": false
+          },
+          "lines": true,
+          "linewidth": 1,
+          "nullPointMode": "null",
+          "options": {
+            "alertThreshold": true
+          },
+          "percentage": false,
+          "pluginVersion": "8.0.6",
+          "pointradius": 2,
+          "points": false,
+          "renderer": "flot",
+          "seriesOverrides": [],
+          "spaceLength": 10,
+          "stack": false,
+          "steppedLine": false,
+          "targets": [
+            {
+              "expr": "rate(rest_server_blob_delete_bytes_total{instance=\"tahoe:8010\"}[60s])",
+              "legendFormat": "{{type}}",
+              "refId": "A"
+            }
+          ],
+          "thresholds": [],
+          "timeRegions": [],
+          "title": "Blob Delete Throughput",
+          "tooltip": {
+            "shared": true,
+            "sort": 0,
+            "value_type": "individual"
+          },
+          "type": "graph",
+          "xaxis": {
+            "mode": "time",
+            "show": true,
+            "values": []
+          },
+          "yaxes": [
+            {
+              "format": "short",
+              "logBase": 1,
+              "show": true
+            },
+            {
+              "format": "short",
+              "logBase": 1,
+              "show": true
+            }
+          ],
+          "yaxis": {
+            "align": false
+          }
+        },
+        {
+          "aliasColors": {},
+          "bars": false,
+          "dashLength": 10,
+          "dashes": false,
+          "fieldConfig": {
+            "defaults": {
+              "links": []
+            },
+            "overrides": []
+          },
+          "fill": 1,
+          "fillGradient": 0,
+          "gridPos": {
+            "h": 8,
+            "w": 12,
+            "x": 12,
+            "y": 111
+          },
+          "hiddenSeries": false,
+          "id": 76,
+          "legend": {
+            "avg": false,
+            "current": false,
+            "max": false,
+            "min": false,
+            "show": true,
+            "total": false,
+            "values": false
+          },
+          "lines": true,
+          "linewidth": 1,
+          "nullPointMode": "null",
+          "options": {
+            "alertThreshold": true
+          },
+          "percentage": false,
+          "pluginVersion": "8.0.6",
+          "pointradius": 2,
+          "points": false,
+          "renderer": "flot",
+          "seriesOverrides": [],
+          "spaceLength": 10,
+          "stack": false,
+          "steppedLine": false,
+          "targets": [
+            {
+              "expr": "rate(rest_server_blob_delete_total{instance=\"tahoe:8010\"}[60s])",
+              "legendFormat": "{{type}}",
+              "refId": "A"
+            }
+          ],
+          "thresholds": [],
+          "timeRegions": [],
+          "title": "Blob Delete Operations",
+          "tooltip": {
+            "shared": true,
+            "sort": 0,
+            "value_type": "individual"
+          },
+          "type": "graph",
+          "xaxis": {
+            "mode": "time",
+            "show": true,
+            "values": []
+          },
+          "yaxes": [
+            {
+              "format": "short",
+              "logBase": 1,
+              "show": true
+            },
+            {
+              "format": "short",
+              "logBase": 1,
+              "show": true
+            }
+          ],
+          "yaxis": {
+            "align": false
+          }
+        }
+      ],
+      "title": "restic",
+      "type": "row"
+    }
+  ],
+  "refresh": "1m",
+  "schemaVersion": 34,
+  "style": "dark",
+  "tags": [],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {
+    "refresh_intervals": [
+      "5s",
+      "10s",
+      "30s",
+      "1m",
+      "5m",
+      "15m",
+      "30m",
+      "1h",
+      "2h",
+      "1d"
+    ]
+  },
+  "timezone": "",
+  "title": "nas",
+  "uid": "k4IdpucZk",
+  "version": 42,
+  "weekStart": ""
+}
diff --git a/modules/services/grafana/dashboards/node-exporter.json b/modules/services/grafana/dashboards/node-exporter.json
new file mode 100644
index 0000000..44356fa
--- /dev/null
+++ b/modules/services/grafana/dashboards/node-exporter.json
@@ -0,0 +1,14116 @@
+{
+  "__inputs": [
+    {
+      "name": "DS_PROMETHEUS",
+      "label": "Prometheus",
+      "description": "",
+      "type": "datasource",
+      "pluginId": "prometheus",
+      "pluginName": "Prometheus"
+    }
+  ],
+  "__requires": [
+    {
+      "type": "panel",
+      "id": "gauge",
+      "name": "Gauge",
+      "version": ""
+    },
+    {
+      "type": "grafana",
+      "id": "grafana",
+      "name": "Grafana",
+      "version": "7.3.7"
+    },
+    {
+      "type": "panel",
+      "id": "graph",
+      "name": "Graph",
+      "version": ""
+    },
+    {
+      "type": "datasource",
+      "id": "prometheus",
+      "name": "Prometheus",
+      "version": "1.0.0"
+    },
+    {
+      "type": "panel",
+      "id": "singlestat",
+      "name": "Singlestat",
+      "version": ""
+    }
+  ],
+  "annotations": {
+    "list": [
+      {
+        "$$hashKey": "object:1058",
+        "builtIn": 1,
+        "datasource": "-- Grafana --",
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "gnetId": 1860,
+  "graphTooltip": 0,
+  "id": null,
+  "iteration": 1641803921158,
+  "links": [
+    {
+      "icon": "external link",
+      "tags": [],
+      "title": "GitHub",
+      "type": "link",
+      "url": "https://github.com/rfrail3/grafana-dashboards"
+    },
+    {
+      "icon": "external link",
+      "tags": [],
+      "title": "Grafana",
+      "type": "link",
+      "url": "https://grafana.com/grafana/dashboards/1860"
+    }
+  ],
+  "panels": [
+    {
+      "collapsed": false,
+      "datasource": "${DS_PROMETHEUS}",
+      "gridPos": {
+        "h": 1,
+        "w": 24,
+        "x": 0,
+        "y": 0
+      },
+      "id": 261,
+      "panels": [],
+      "repeat": null,
+      "title": "Quick CPU / Mem / Disk",
+      "type": "row"
+    },
+    {
+      "cacheTimeout": null,
+      "datasource": "${DS_PROMETHEUS}",
+      "description": "Busy state of all CPU cores together",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "custom": {},
+          "mappings": [
+            {
+              "id": 0,
+              "op": "=",
+              "text": "N/A",
+              "type": 1,
+              "value": "null"
+            }
+          ],
+          "max": 100,
+          "min": 0,
+          "nullValueMode": "null",
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "rgba(50, 172, 45, 0.97)",
+                "value": null
+              },
+              {
+                "color": "rgba(237, 129, 40, 0.89)",
+                "value": 85
+              },
+              {
+                "color": "rgba(245, 54, 54, 0.9)",
+                "value": 95
+              }
+            ]
+          },
+          "unit": "percent"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 3,
+        "x": 0,
+        "y": 1
+      },
+      "id": 20,
+      "links": [],
+      "options": {
+        "orientation": "horizontal",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "showThresholdLabels": false,
+        "showThresholdMarkers": true
+      },
+      "pluginVersion": "7.3.7",
+      "targets": [
+        {
+          "expr": "(((count(count(node_cpu_seconds_total{instance=\"$node\",job=\"$job\"}) by (cpu))) - avg(sum by (mode)(rate(node_cpu_seconds_total{mode='idle',instance=\"$node\",job=\"$job\"}[$__rate_interval])))) * 100) / count(count(node_cpu_seconds_total{instance=\"$node\",job=\"$job\"}) by (cpu))",
+          "hide": false,
+          "intervalFactor": 1,
+          "legendFormat": "",
+          "refId": "A",
+          "step": 240
+        }
+      ],
+      "title": "CPU Busy",
+      "type": "gauge"
+    },
+    {
+      "cacheTimeout": null,
+      "datasource": "${DS_PROMETHEUS}",
+      "description": "Busy state of all CPU cores together (5 min average)",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "custom": {},
+          "mappings": [
+            {
+              "id": 0,
+              "op": "=",
+              "text": "N/A",
+              "type": 1,
+              "value": "null"
+            }
+          ],
+          "max": 100,
+          "min": 0,
+          "nullValueMode": "null",
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "rgba(50, 172, 45, 0.97)",
+                "value": null
+              },
+              {
+                "color": "rgba(237, 129, 40, 0.89)",
+                "value": 85
+              },
+              {
+                "color": "rgba(245, 54, 54, 0.9)",
+                "value": 95
+              }
+            ]
+          },
+          "unit": "percent"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 3,
+        "x": 3,
+        "y": 1
+      },
+      "id": 155,
+      "links": [],
+      "options": {
+        "orientation": "horizontal",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "showThresholdLabels": false,
+        "showThresholdMarkers": true
+      },
+      "pluginVersion": "7.3.7",
+      "targets": [
+        {
+          "expr": "avg(node_load5{instance=\"$node\",job=\"$job\"}) /  count(count(node_cpu_seconds_total{instance=\"$node\",job=\"$job\"}) by (cpu)) * 100",
+          "format": "time_series",
+          "hide": false,
+          "intervalFactor": 1,
+          "refId": "A",
+          "step": 240
+        }
+      ],
+      "title": "Sys Load (5m avg)",
+      "type": "gauge"
+    },
+    {
+      "cacheTimeout": null,
+      "datasource": "${DS_PROMETHEUS}",
+      "description": "Busy state of all CPU cores together (15 min average)",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "custom": {},
+          "mappings": [
+            {
+              "id": 0,
+              "op": "=",
+              "text": "N/A",
+              "type": 1,
+              "value": "null"
+            }
+          ],
+          "max": 100,
+          "min": 0,
+          "nullValueMode": "null",
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "rgba(50, 172, 45, 0.97)",
+                "value": null
+              },
+              {
+                "color": "rgba(237, 129, 40, 0.89)",
+                "value": 85
+              },
+              {
+                "color": "rgba(245, 54, 54, 0.9)",
+                "value": 95
+              }
+            ]
+          },
+          "unit": "percent"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 3,
+        "x": 6,
+        "y": 1
+      },
+      "id": 19,
+      "links": [],
+      "options": {
+        "orientation": "horizontal",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "showThresholdLabels": false,
+        "showThresholdMarkers": true
+      },
+      "pluginVersion": "7.3.7",
+      "targets": [
+        {
+          "expr": "avg(node_load15{instance=\"$node\",job=\"$job\"}) /  count(count(node_cpu_seconds_total{instance=\"$node\",job=\"$job\"}) by (cpu)) * 100",
+          "hide": false,
+          "intervalFactor": 1,
+          "refId": "A",
+          "step": 240
+        }
+      ],
+      "title": "Sys Load (15m avg)",
+      "type": "gauge"
+    },
+    {
+      "cacheTimeout": null,
+      "datasource": "${DS_PROMETHEUS}",
+      "description": "Non available RAM memory",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "custom": {},
+          "decimals": 0,
+          "mappings": [],
+          "max": 100,
+          "min": 0,
+          "nullValueMode": "null",
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "rgba(50, 172, 45, 0.97)",
+                "value": null
+              },
+              {
+                "color": "rgba(237, 129, 40, 0.89)",
+                "value": 80
+              },
+              {
+                "color": "rgba(245, 54, 54, 0.9)",
+                "value": 90
+              }
+            ]
+          },
+          "unit": "percent"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 3,
+        "x": 9,
+        "y": 1
+      },
+      "hideTimeOverride": false,
+      "id": 16,
+      "links": [],
+      "options": {
+        "orientation": "horizontal",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "showThresholdLabels": false,
+        "showThresholdMarkers": true
+      },
+      "pluginVersion": "7.3.7",
+      "targets": [
+        {
+          "expr": "((node_memory_MemTotal_bytes{instance=\"$node\",job=\"$job\"} - node_memory_MemFree_bytes{instance=\"$node\",job=\"$job\"}) / (node_memory_MemTotal_bytes{instance=\"$node\",job=\"$job\"} )) * 100",
+          "format": "time_series",
+          "hide": true,
+          "intervalFactor": 1,
+          "refId": "A",
+          "step": 240
+        },
+        {
+          "expr": "100 - ((node_memory_MemAvailable_bytes{instance=\"$node\",job=\"$job\"} * 100) / node_memory_MemTotal_bytes{instance=\"$node\",job=\"$job\"})",
+          "format": "time_series",
+          "hide": false,
+          "intervalFactor": 1,
+          "refId": "B",
+          "step": 240
+        }
+      ],
+      "title": "RAM Used",
+      "type": "gauge"
+    },
+    {
+      "cacheTimeout": null,
+      "datasource": "${DS_PROMETHEUS}",
+      "description": "Used Swap",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "custom": {},
+          "mappings": [
+            {
+              "id": 0,
+              "op": "=",
+              "text": "N/A",
+              "type": 1,
+              "value": "null"
+            }
+          ],
+          "max": 100,
+          "min": 0,
+          "nullValueMode": "null",
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "rgba(50, 172, 45, 0.97)",
+                "value": null
+              },
+              {
+                "color": "rgba(237, 129, 40, 0.89)",
+                "value": 10
+              },
+              {
+                "color": "rgba(245, 54, 54, 0.9)",
+                "value": 25
+              }
+            ]
+          },
+          "unit": "percent"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 3,
+        "x": 12,
+        "y": 1
+      },
+      "id": 21,
+      "links": [],
+      "options": {
+        "orientation": "horizontal",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "showThresholdLabels": false,
+        "showThresholdMarkers": true
+      },
+      "pluginVersion": "7.3.7",
+      "targets": [
+        {
+          "expr": "((node_memory_SwapTotal_bytes{instance=\"$node\",job=\"$job\"} - node_memory_SwapFree_bytes{instance=\"$node\",job=\"$job\"}) / (node_memory_SwapTotal_bytes{instance=\"$node\",job=\"$job\"} )) * 100",
+          "intervalFactor": 1,
+          "refId": "A",
+          "step": 240
+        }
+      ],
+      "title": "SWAP Used",
+      "type": "gauge"
+    },
+    {
+      "cacheTimeout": null,
+      "datasource": "${DS_PROMETHEUS}",
+      "description": "Used Root FS",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "custom": {},
+          "mappings": [
+            {
+              "id": 0,
+              "op": "=",
+              "text": "N/A",
+              "type": 1,
+              "value": "null"
+            }
+          ],
+          "max": 100,
+          "min": 0,
+          "nullValueMode": "null",
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "rgba(50, 172, 45, 0.97)",
+                "value": null
+              },
+              {
+                "color": "rgba(237, 129, 40, 0.89)",
+                "value": 80
+              },
+              {
+                "color": "rgba(245, 54, 54, 0.9)",
+                "value": 90
+              }
+            ]
+          },
+          "unit": "percent"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 3,
+        "x": 15,
+        "y": 1
+      },
+      "id": 154,
+      "links": [],
+      "options": {
+        "orientation": "horizontal",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "showThresholdLabels": false,
+        "showThresholdMarkers": true
+      },
+      "pluginVersion": "7.3.7",
+      "targets": [
+        {
+          "expr": "100 - ((node_filesystem_avail_bytes{instance=\"$node\",job=\"$job\",mountpoint=\"/\",fstype!=\"rootfs\"} * 100) / node_filesystem_size_bytes{instance=\"$node\",job=\"$job\",mountpoint=\"/\",fstype!=\"rootfs\"})",
+          "format": "time_series",
+          "intervalFactor": 1,
+          "refId": "A",
+          "step": 240
+        }
+      ],
+      "title": "Root FS Used",
+      "type": "gauge"
+    },
+    {
+      "cacheTimeout": null,
+      "colorBackground": false,
+      "colorValue": false,
+      "colors": [
+        "rgba(245, 54, 54, 0.9)",
+        "rgba(237, 129, 40, 0.89)",
+        "rgba(50, 172, 45, 0.97)"
+      ],
+      "datasource": "${DS_PROMETHEUS}",
+      "description": "Total number of CPU cores",
+      "fieldConfig": {
+        "defaults": {
+          "custom": {}
+        },
+        "overrides": []
+      },
+      "format": "short",
+      "gauge": {
+        "maxValue": 100,
+        "minValue": 0,
+        "show": false,
+        "thresholdLabels": false,
+        "thresholdMarkers": true
+      },
+      "gridPos": {
+        "h": 2,
+        "w": 2,
+        "x": 18,
+        "y": 1
+      },
+      "id": 14,
+      "interval": null,
+      "links": [],
+      "mappingType": 1,
+      "mappingTypes": [
+        {
+          "name": "value to text",
+          "value": 1
+        },
+        {
+          "name": "range to text",
+          "value": 2
+        }
+      ],
+      "maxDataPoints": 100,
+      "maxPerRow": 6,
+      "nullPointMode": "null",
+      "nullText": null,
+      "postfix": "",
+      "postfixFontSize": "50%",
+      "prefix": "",
+      "prefixFontSize": "50%",
+      "rangeMaps": [
+        {
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+              "alias": "/.*sdb2.*/",
+              "color": "#BF1B00"
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+          "timeRegions": [],
+          "timeShift": null,
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+          "bars": false,
+          "dashLength": 10,
+          "dashes": false,
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+            "defaults": {
+              "custom": {},
+              "links": []
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+              "intervalFactor": 4,
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+              "intervalFactor": 1,
+              "legendFormat": "{{device}} - Write wait time avg",
+              "refId": "B",
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+          "timeFrom": null,
+          "timeRegions": [],
+          "timeShift": null,
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+            "sort": 0,
+            "value_type": "individual"
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+            "mode": "time",
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+            "show": true,
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+              "min": null,
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+            "alignLevel": null
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+        },
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+          "aliasColors": {},
+          "bars": false,
+          "dashLength": 10,
+          "dashes": false,
+          "datasource": "${DS_PROMETHEUS}",
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+          "fieldConfig": {
+            "defaults": {
+              "custom": {},
+              "links": []
+            },
+            "overrides": []
+          },
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+            "rightSide": false,
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+              "alias": "/.*sdc_.*/",
+              "color": "#6ED0E0"
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+            {
+              "alias": "/.*sdd_.*/",
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+              "alias": "/.*sde_.*/",
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+              "alias": "/.*sda1.*/",
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+              "alias": "/.*sda2_.*/",
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+              "alias": "/.*sda3_.*/",
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+              "alias": "/.*sdb1.*/",
+              "color": "#0A50A1"
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+              "alias": "/.*sdb2.*/",
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+              "alias": "/.*sdc1.*/",
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+              "alias": "/.*sdc2.*/",
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+              "alias": "/.*sdc3.*/",
+              "color": "#9AC48A"
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+              "alias": "/.*sdd1.*/",
+              "color": "#65C5DB"
+            },
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+              "alias": "/.*sdd2.*/",
+              "color": "#F9934E"
+            },
+            {
+              "alias": "/.*sdd3.*/",
+              "color": "#EA6460"
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+            {
+              "alias": "/.*sde1.*/",
+              "color": "#E0F9D7"
+            },
+            {
+              "alias": "/.*sdd2.*/",
+              "color": "#FCEACA"
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+              "alias": "/.*sde3.*/",
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+              "intervalFactor": 4,
+              "legendFormat": "{{device}}",
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+          ],
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+          "timeFrom": null,
+          "timeRegions": [],
+          "timeShift": null,
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+            "sort": 0,
+            "value_type": "individual"
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+            "mode": "time",
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+            "show": true,
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+              "format": "none",
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+              "show": true
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+            "alignLevel": null
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+        },
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+          "aliasColors": {},
+          "bars": false,
+          "dashLength": 10,
+          "dashes": false,
+          "datasource": "${DS_PROMETHEUS}",
+          "description": "The number of read and write requests merged per second that were queued to the device",
+          "fieldConfig": {
+            "defaults": {
+              "custom": {},
+              "links": []
+            },
+            "overrides": []
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+          "fillGradient": 0,
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+            "w": 12,
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+              "alias": "/.*sda_.*/",
+              "color": "#7EB26D"
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+              "alias": "/.*sdb_.*/",
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+            {
+              "alias": "/.*sdc_.*/",
+              "color": "#6ED0E0"
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+            {
+              "alias": "/.*sdd_.*/",
+              "color": "#EF843C"
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+            {
+              "alias": "/.*sde_.*/",
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+            {
+              "alias": "/.*sda1.*/",
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+              "color": "#BA43A9"
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+              "alias": "/.*sda3_.*/",
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+            {
+              "alias": "/.*sdb1.*/",
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+              "alias": "/.*sdb3.*/",
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+            {
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+              "color": "#614D93"
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+            {
+              "alias": "/.*sdc3.*/",
+              "color": "#9AC48A"
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+            {
+              "alias": "/.*sdd1.*/",
+              "color": "#65C5DB"
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+              "alias": "/.*sdd2.*/",
+              "color": "#F9934E"
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+            {
+              "alias": "/.*sdd3.*/",
+              "color": "#EA6460"
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+            {
+              "alias": "/.*sde1.*/",
+              "color": "#E0F9D7"
+            },
+            {
+              "alias": "/.*sdd2.*/",
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+            },
+            {
+              "alias": "/.*sde3.*/",
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+          "steppedLine": false,
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+              "legendFormat": "{{device}} - Read merged",
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+              "expr": "rate(node_disk_writes_merged_total{instance=\"$node\",job=\"$job\"}[$__rate_interval])",
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+          "thresholds": [],
+          "timeFrom": null,
+          "timeRegions": [],
+          "timeShift": null,
+          "title": "Disk R/W Merged",
+          "tooltip": {
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+            "sort": 0,
+            "value_type": "individual"
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+          "type": "graph",
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+            "mode": "time",
+            "name": null,
+            "show": true,
+            "values": []
+          },
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+              "$$hashKey": "object:585",
+              "format": "iops",
+              "label": "I/Os",
+              "logBase": 1,
+              "max": null,
+              "min": null,
+              "show": true
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+            {
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+        },
+        {
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+          "bars": false,
+          "dashLength": 10,
+          "dashes": false,
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+              "links": []
+            },
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+              "alias": "/.*sdc_.*/",
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+            {
+              "alias": "/.*sdd_.*/",
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+            {
+              "alias": "/.*sde_.*/",
+              "color": "#E24D42"
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+            {
+              "alias": "/.*sda1.*/",
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+            {
+              "alias": "/.*sda2_.*/",
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+            {
+              "alias": "/.*sda3_.*/",
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+            {
+              "alias": "/.*sdb1.*/",
+              "color": "#0A50A1"
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+            {
+              "alias": "/.*sdb2.*/",
+              "color": "#BF1B00"
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+            {
+              "alias": "/.*sdb3.*/",
+              "color": "#E0752D"
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+            {
+              "alias": "/.*sdc1.*/",
+              "color": "#962D82"
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+            {
+              "alias": "/.*sdc2.*/",
+              "color": "#614D93"
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+            {
+              "alias": "/.*sdc3.*/",
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+            {
+              "alias": "/.*sdd1.*/",
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+              "alias": "/.*sdd2.*/",
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+              "alias": "/.*sdd3.*/",
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+              "alias": "/.*sde1.*/",
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+        "hide": 0,
+        "includeAll": false,
+        "label": "Host:",
+        "multi": false,
+        "name": "node",
+        "options": [],
+        "query": "label_values(node_uname_info{job=\"$job\"}, instance)",
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 1,
+        "tagValuesQuery": "",
+        "tags": [],
+        "tagsQuery": "",
+        "type": "query",
+        "useTags": false
+      },
+      {
+        "allValue": null,
+        "current": {
+          "selected": false,
+          "text": "[a-z]+|nvme[0-9]+n[0-9]+|mmcblk[0-9]+",
+          "value": "[a-z]+|nvme[0-9]+n[0-9]+|mmcblk[0-9]+"
+        },
+        "error": null,
+        "hide": 2,
+        "includeAll": false,
+        "label": null,
+        "multi": false,
+        "name": "diskdevices",
+        "options": [
+          {
+            "selected": true,
+            "text": "[a-z]+|nvme[0-9]+n[0-9]+|mmcblk[0-9]+",
+            "value": "[a-z]+|nvme[0-9]+n[0-9]+|mmcblk[0-9]+"
+          }
+        ],
+        "query": "[a-z]+|nvme[0-9]+n[0-9]+|mmcblk[0-9]+",
+        "skipUrlSync": false,
+        "type": "custom"
+      }
+    ]
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {
+    "refresh_intervals": [
+      "5s",
+      "10s",
+      "30s",
+      "1m",
+      "5m",
+      "15m",
+      "30m",
+      "1h",
+      "2h",
+      "1d"
+    ],
+    "time_options": [
+      "5m",
+      "15m",
+      "1h",
+      "6h",
+      "12h",
+      "24h",
+      "2d",
+      "7d",
+      "30d"
+    ]
+  },
+  "timezone": "browser",
+  "title": "Node Exporter Full",
+  "uid": "rYdddlPWk",
+  "version": 67
+}
diff --git a/modules/services/grafana/dashboards/rtr.json b/modules/services/grafana/dashboards/rtr.json
new file mode 100644
index 0000000..75f1598
--- /dev/null
+++ b/modules/services/grafana/dashboards/rtr.json
@@ -0,0 +1,3784 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": "-- Grafana --",
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "target": {
+          "limit": 100,
+          "matchAny": false,
+          "tags": [],
+          "type": "dashboard"
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+        "type": "dashboard"
+      }
+    ]
+  },
+  "description": "system and application metrics for our router",
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 0,
+  "id": 4,
+  "iteration": 1646594877966,
+  "links": [],
+  "liveNow": false,
+  "panels": [
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+        "w": 24,
+        "x": 0,
+        "y": 0
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+      "panels": [],
+      "title": "overview",
+      "type": "row"
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+            "mode": "fixed"
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+                }
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+              }
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+          },
+          "unit": "decbytes"
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+        "overrides": []
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+        "y": 1
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+      "links": [],
+      "maxDataPoints": 100,
+      "options": {
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+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "horizontal",
+        "reduceOptions": {
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+            "lastNotNull"
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+          "fields": "",
+          "values": false
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+        "text": {},
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+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
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+      "title": "total WAN ingress",
+      "type": "stat"
+    },
+    {
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+        "defaults": {
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+            "mode": "fixed"
+          },
+          "mappings": [
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+              "options": {
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+                "result": {
+                  "text": "N/A"
+                }
+              },
+              "type": "special"
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+          "thresholds": {
+            "mode": "absolute",
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+          "unit": "decbytes"
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+      "links": [],
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+      "options": {
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+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "horizontal",
+        "reduceOptions": {
+          "calcs": [
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+          ],
+          "fields": "",
+          "values": false
+        },
+        "text": {},
+        "textMode": "auto"
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+      "pluginVersion": "8.3.3",
+      "targets": [
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+          "expr": "node_network_transmit_bytes_total{instance=\"rtr\", device=\"eno1\"}",
+          "instant": false,
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "total WAN egress",
+      "type": "stat"
+    },
+    {
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+          "decimals": 0,
+          "mappings": [
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+                "result": {
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+          "thresholds": {
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+          "unit": "short"
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+        "overrides": []
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+      "links": [],
+      "maxDataPoints": 100,
+      "options": {
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+        "justifyMode": "auto",
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+        "reduceOptions": {
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+          "fields": "",
+          "values": false
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+        "text": {},
+        "textMode": "auto"
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+      "pluginVersion": "8.3.3",
+      "targets": [
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+          "interval": "",
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+          "refId": "A"
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+      "title": "total DNS queries",
+      "type": "stat"
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+        "uid": "PBFA97CFB590B2093"
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+      "description": "Non available RAM memory",
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+        "reduceOptions": {
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+          "fields": "",
+          "values": false
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+        "text": {},
+        "textMode": "auto"
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+          "interval": "",
+          "intervalFactor": 1,
+          "legendFormat": "",
+          "refId": "A",
+          "step": 900
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+          "hide": false,
+          "interval": "",
+          "intervalFactor": 1,
+          "legendFormat": "",
+          "refId": "B",
+          "step": 900
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+      "title": "Used RAM Memory",
+      "type": "stat"
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+      "fieldConfig": {
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+          "values": false
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+          "hide": false,
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+        "reduceOptions": {
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+          "fields": "",
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+            "spanNulls": true,
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+            "current": false,
+            "max": false,
+            "min": false,
+            "show": false,
+            "total": false,
+            "values": false
+          },
+          "lines": true,
+          "linewidth": 1,
+          "nullPointMode": "null",
+          "options": {
+            "alertThreshold": true
+          },
+          "percentage": false,
+          "pluginVersion": "8.1.5",
+          "pointradius": 2,
+          "points": false,
+          "renderer": "flot",
+          "seriesOverrides": [],
+          "spaceLength": 10,
+          "stack": false,
+          "steppedLine": false,
+          "targets": [
+            {
+              "exemplar": true,
+              "expr": "rate(process_cpu_seconds_total{job=\"netd\"}[1m])",
+              "format": "time_series",
+              "instant": false,
+              "interval": "",
+              "legendFormat": "CPU utilization",
+              "refId": "A"
+            }
+          ],
+          "thresholds": [],
+          "timeRegions": [],
+          "title": "CPU utilisation",
+          "tooltip": {
+            "shared": true,
+            "sort": 0,
+            "value_type": "individual"
+          },
+          "type": "graph",
+          "xaxis": {
+            "mode": "time",
+            "show": true,
+            "values": []
+          },
+          "yaxes": [
+            {
+              "$$hashKey": "object:795",
+              "format": "short",
+              "logBase": 1,
+              "show": true
+            },
+            {
+              "$$hashKey": "object:796",
+              "format": "short",
+              "logBase": 1,
+              "show": true
+            }
+          ],
+          "yaxis": {
+            "align": false
+          }
+        },
+        {
+          "aliasColors": {},
+          "bars": false,
+          "dashLength": 10,
+          "dashes": false,
+          "description": "",
+          "fieldConfig": {
+            "defaults": {
+              "unit": "bytes"
+            },
+            "overrides": []
+          },
+          "fill": 1,
+          "fillGradient": 0,
+          "gridPos": {
+            "h": 6,
+            "w": 8,
+            "x": 16,
+            "y": 46
+          },
+          "hiddenSeries": false,
+          "id": 142,
+          "legend": {
+            "avg": false,
+            "current": false,
+            "max": false,
+            "min": false,
+            "show": false,
+            "total": false,
+            "values": false
+          },
+          "lines": true,
+          "linewidth": 1,
+          "nullPointMode": "null",
+          "options": {
+            "alertThreshold": true
+          },
+          "percentage": false,
+          "pluginVersion": "8.1.5",
+          "pointradius": 2,
+          "points": false,
+          "renderer": "flot",
+          "seriesOverrides": [],
+          "spaceLength": 10,
+          "stack": false,
+          "steppedLine": false,
+          "targets": [
+            {
+              "exemplar": true,
+              "expr": "process_resident_memory_bytes{job=\"netd\"}",
+              "format": "time_series",
+              "instant": false,
+              "interval": "",
+              "legendFormat": "rss",
+              "refId": "A"
+            }
+          ],
+          "thresholds": [],
+          "timeRegions": [],
+          "title": "RSS utilisation",
+          "tooltip": {
+            "shared": true,
+            "sort": 0,
+            "value_type": "individual"
+          },
+          "type": "graph",
+          "xaxis": {
+            "mode": "time",
+            "show": true,
+            "values": []
+          },
+          "yaxes": [
+            {
+              "$$hashKey": "object:795",
+              "format": "bytes",
+              "logBase": 1,
+              "show": true
+            },
+            {
+              "$$hashKey": "object:796",
+              "format": "short",
+              "logBase": 1,
+              "show": true
+            }
+          ],
+          "yaxis": {
+            "align": false
+          }
+        }
+      ],
+      "title": "netd",
+      "type": "row"
+    }
+  ],
+  "refresh": "1m",
+  "schemaVersion": 34,
+  "style": "dark",
+  "tags": [],
+  "templating": {
+    "list": [
+    ]
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {
+    "refresh_intervals": [
+      "5s",
+      "10s",
+      "30s",
+      "1m",
+      "5m",
+      "15m",
+      "30m",
+      "1h",
+      "2h",
+      "1d"
+    ]
+  },
+  "timezone": "",
+  "title": "rtr",
+  "uid": "r1KOAHKZz",
+  "version": 103,
+  "weekStart": ""
+}
diff --git a/modules/services/grafana/default.nix b/modules/services/grafana/default.nix
new file mode 100644
index 0000000..773090b
--- /dev/null
+++ b/modules/services/grafana/default.nix
@@ -0,0 +1,54 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.services.grafana;
+  secrets = config.age.secrets;
+in {
+  options.my.services.grafana = with lib; {
+    enable = mkEnableOption "grafana observability stack";
+    vhostName = mkOption {
+      type = types.str;
+      example = "dash.fcuny.net";
+      description = "Name for the virtual host";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.grafana = {
+      enable = true;
+      security.adminUser = "fcuny";
+      analytics.reporting.enable = false;
+      port = 4000;
+      provision = {
+        enable = true;
+        datasources = [{
+          name = "prometheus";
+          type = "prometheus";
+          isDefault = true;
+          url = "http://localhost:9090";
+        }];
+        dashboards = [{
+          disableDeletion = true;
+          options.path = ./dashboards;
+        }];
+      };
+    };
+
+    services.nginx.virtualHosts."${cfg.vhostName}" = {
+      forceSSL = true;
+      useACMEHost = cfg.vhostName;
+      locations."/" = {
+        proxyPass = "http://${config.services.grafana.addr}:${
+            toString config.services.grafana.port
+          }";
+        proxyWebsockets = true;
+      };
+    };
+
+    security.acme.certs."${cfg.vhostName}" = {
+      dnsProvider = "gcloud";
+      credentialsFile = secrets."acme/credentials".path;
+    };
+
+    my.services.backup = { paths = [ "/var/lib/grafana" ]; };
+  };
+}
diff --git a/modules/services/metrics-exporter/default.nix b/modules/services/metrics-exporter/default.nix
new file mode 100644
index 0000000..b461bd2
--- /dev/null
+++ b/modules/services/metrics-exporter/default.nix
@@ -0,0 +1,18 @@
+{ config, pkgs, lib, ... }:
+let cfg = config.my.services.metrics-exporter;
+in {
+  options.my.services.metrics-exporter = with lib; {
+    enable = mkEnableOption "Prometheus metrics exporter";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.prometheus = {
+      exporters = {
+        node = {
+          enable = true;
+          enabledCollectors = [ "tcpstat" "systemd" "interrupts" ];
+        };
+      };
+    };
+  };
+}
diff --git a/modules/services/navidrome/default.nix b/modules/services/navidrome/default.nix
new file mode 100644
index 0000000..87f7422
--- /dev/null
+++ b/modules/services/navidrome/default.nix
@@ -0,0 +1,42 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.my.services.navidrome;
+  secrets = config.age.secrets;
+in {
+  options.my.services.navidrome = with lib; {
+    enable = mkEnableOption "Navidrome Music Server";
+    vhostName = mkOption {
+      type = types.str;
+      example = "music.fcuny.net";
+      description = "Name for the virtual host";
+    };
+    musicFolder = mkOption {
+      type = types.str;
+      example = "/data/fast/music";
+      description = "Music folder";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.navidrome = {
+      enable = true;
+      settings = { MusicFolder = cfg.musicFolder; };
+    };
+
+    services.nginx.virtualHosts."${cfg.vhostName}" = {
+      forceSSL = true;
+      useACMEHost = cfg.vhostName;
+      locations."/" = {
+        proxyPass = "http://127.0.0.1:4533";
+        proxyWebsockets = true;
+      };
+    };
+
+    security.acme.certs."${cfg.vhostName}" = {
+      dnsProvider = "gcloud";
+      credentialsFile = secrets."acme/credentials".path;
+    };
+
+    my.services.backup = { paths = [ "/var/lib/navidrome" ]; };
+  };
+}
diff --git a/modules/services/nginx/default.nix b/modules/services/nginx/default.nix
new file mode 100644
index 0000000..e37e9b3
--- /dev/null
+++ b/modules/services/nginx/default.nix
@@ -0,0 +1,49 @@
+{ config, lib, pkgs, ... }:
+let cfg = config.my.services.nginx;
+in {
+  options.my.services.nginx = with lib; { enable = mkEnableOption "Nginx"; };
+  config = lib.mkIf cfg.enable {
+    services.nginx = {
+      enable = true;
+      statusPage = true; # For monitoring scraping.
+      recommendedGzipSettings = true;
+      recommendedOptimisation = true;
+      recommendedTlsSettings = true;
+      recommendedProxySettings = true;
+    };
+
+    networking.firewall.allowedTCPPorts = [ 80 443 ];
+
+    # Nginx needs to be able to read the certificates
+    users.users.nginx.extraGroups = [ "acme" ];
+
+    security.acme = {
+      email = "franck@fcuny.net";
+      acceptTerms = true;
+    };
+
+    services.prometheus = {
+      exporters.nginx = {
+        enable = true;
+        listenAddress = "127.0.0.1";
+      };
+      scrapeConfigs = [{
+        job_name = "nginx";
+        static_configs = [{
+          targets = [
+            "127.0.0.1:${
+              toString config.services.prometheus.exporters.nginx.port
+            }"
+          ];
+          labels = { instance = config.networking.hostName; };
+        }];
+      }];
+    };
+
+    services.grafana.provision.dashboards = [{
+      name = "NGINX";
+      options.path = pkgs.nur.repos.alarsyo.grafanaDashboards.nginx;
+      disableDeletion = true;
+    }];
+  };
+}
diff --git a/modules/services/nginx/sso/default.nix b/modules/services/nginx/sso/default.nix
new file mode 100644
index 0000000..27ed7d6
--- /dev/null
+++ b/modules/services/nginx/sso/default.nix
@@ -0,0 +1,80 @@
+# I must override the module to allow having runtime secrets
+{ config, lib, pkgs, utils, ... }:
+let
+  cfg = config.services.nginx.sso;
+  pkg = lib.getBin cfg.package;
+  confPath = "/var/lib/nginx-sso/config.json";
+in {
+  disabledModules = [ "services/security/nginx-sso.nix" ];
+  options.services.nginx.sso = with lib; {
+    enable = mkEnableOption "nginx-sso service";
+    package = mkOption {
+      type = types.package;
+      default = pkgs.nginx-sso;
+      defaultText = "pkgs.nginx-sso";
+      description = ''
+        The nginx-sso package that should be used.
+      '';
+    };
+    configuration = mkOption {
+      type = types.attrsOf types.unspecified;
+      default = { };
+      example = literalExample ''
+        {
+          listen = { addr = "127.0.0.1"; port = 8080; };
+          providers.token.tokens = {
+            myuser = "MyToken";
+          };
+          acl = {
+            rule_sets = [
+              {
+                rules = [ { field = "x-application"; equals = "MyApp"; } ];
+                allow = [ "myuser" ];
+              }
+            ];
+          };
+        }
+      '';
+      description = ''
+        nginx-sso configuration
+        (<link xlink:href="https://github.com/Luzifer/nginx-sso/wiki/Main-Configuration">documentation</link>)
+        as a Nix attribute set.
+      '';
+    };
+  };
+  config = lib.mkIf cfg.enable {
+    systemd.services.nginx-sso = {
+      description = "Nginx SSO Backend";
+      after = [ "network.target" ];
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        StateDirectory = "nginx-sso";
+        WorkingDirectory = "/var/lib/nginx-sso";
+        # The files to be merged might not have the correct permissions
+        ExecStartPre = "+${
+            pkgs.writeScript "merge-nginx-sso-config" ''
+              #!${pkgs.bash}/bin/bash
+              rm -f '${confPath}'
+              ${utils.genJqSecretsReplacementSnippet cfg.configuration confPath}
+              # Fix permissions
+              chown nginx-sso:nginx-sso ${confPath}
+              chmod 0600 ${confPath}
+            ''
+          }";
+        ExecStart = lib.mkForce ''
+          ${pkg}/bin/nginx-sso \
+            --config ${confPath} \
+            --frontend-dir ${pkg}/share/frontend
+        '';
+        Restart = "always";
+        User = "nginx-sso";
+        Group = "nginx-sso";
+      };
+    };
+    users.users.nginx-sso = {
+      isSystemUser = true;
+      group = "nginx-sso";
+    };
+    users.groups.nginx-sso = { };
+  };
+}
diff --git a/modules/services/prometheus/default.nix b/modules/services/prometheus/default.nix
new file mode 100644
index 0000000..0c66f47
--- /dev/null
+++ b/modules/services/prometheus/default.nix
@@ -0,0 +1,164 @@
+{ config, pkgs, lib, ... }:
+
+let
+  cfg = config.my.services.prometheus;
+  blackboxConfig = {
+    modules = {
+      https_2xx = {
+        prober = "http";
+        timeout = "5s";
+        http = {
+          method = "GET";
+          valid_status_codes = [ ];
+          fail_if_not_ssl = true;
+          no_follow_redirects = false;
+          tls_config = { insecure_skip_verify = false; };
+          preferred_ip_protocol = "ip4";
+        };
+      };
+      icmp = {
+        prober = "icmp";
+        icmp = { preferred_ip_protocol = "ip4"; };
+        timeout = "5s";
+      };
+    };
+  };
+  relabelConfigs = [
+    {
+      source_labels = [ "__address__" ];
+      target_label = "instance";
+      replacement = "nas";
+      action = "replace";
+      regex = "192.168.6.10:(.*)";
+    }
+    {
+      source_labels = [ "__address__" ];
+      target_label = "instance";
+      replacement = "rtr";
+      action = "replace";
+      regex = "192.168.6.1:(.*)";
+    }
+    {
+      source_labels = [ "__address__" ];
+      target_label = "instance";
+      replacement = "tahoe";
+      action = "replace";
+      regex = "192.168.6.20:(.*)";
+    }
+  ];
+in {
+  options.my.services.prometheus = with lib; {
+    enable = mkEnableOption "Prometheus monitoring solution";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.prometheus.exporters.blackbox = {
+      enable = true;
+      listenAddress = "127.0.0.1";
+      port = 9115;
+      configFile =
+        pkgs.writeText "blackbox.yml" (builtins.toJSON blackboxConfig);
+    };
+
+    services.prometheus = {
+      enable = true;
+
+      globalConfig.scrape_interval = "15s";
+
+      extraFlags = [
+        # 3 years of retention
+        "--storage.tsdb.retention=${toString (365 * 3)}d"
+        "--web.enable-admin-api"
+      ];
+
+      scrapeConfigs = [
+        {
+          job_name = "blackbox-ping";
+          metrics_path = "/probe";
+          params = { module = [ "icmp" ]; };
+          static_configs = [{
+            targets = [ "8.8.8.8" "1.1.1.1" "git.fcuny.net" "fcuny.net" ];
+          }];
+          relabel_configs = [
+            {
+              source_labels = [ "__address__" ];
+              target_label = "__param_target";
+            }
+            {
+              source_labels = [ "__param_target" ];
+              target_label = "instance";
+            }
+            {
+              target_label = "__address__";
+              replacement = "localhost:9115";
+            }
+          ];
+        }
+        {
+          job_name = "blackbox-http";
+          metrics_path = "/probe";
+          params = { module = [ "https_2xx" ]; };
+          static_configs = [{
+            targets = [
+              "https://fcuny.net"
+              "https://git.fcuny.net"
+              "https://notes.fcuny.net"
+            ];
+          }];
+          relabel_configs = [
+            {
+              source_labels = [ "__address__" ];
+              target_label = "__param_target";
+            }
+            {
+              source_labels = [ "__param_target" ];
+              target_label = "instance";
+            }
+            {
+              target_label = "__address__";
+              replacement = "localhost:9115";
+            }
+          ];
+        }
+        {
+          job_name = "node";
+          static_configs =
+            [{ targets = [ "192.168.6.1:9100" "192.168.6.20:9100" ]; }];
+          relabel_configs = relabelConfigs;
+        }
+        {
+          job_name = "prometheus";
+          static_configs = [{ targets = [ "192.168.6.20:9090" ]; }];
+          relabel_configs = relabelConfigs;
+        }
+        {
+          job_name = "dnsd";
+          static_configs = [{ targets = [ "192.168.6.1:8053" ]; }];
+          relabel_configs = relabelConfigs;
+        }
+        {
+          job_name = "dnsdd";
+          static_configs = [{ targets = [ "192.168.6.1:9060" ]; }];
+          relabel_configs = relabelConfigs;
+        }
+        {
+          job_name = "dhcpd";
+          static_configs = [{ targets = [ "192.168.6.1:8067" ]; }];
+          relabel_configs = relabelConfigs;
+        }
+        {
+          job_name = "netd";
+          static_configs = [{ targets = [ "192.168.6.1:8055" ]; }];
+          relabel_configs = relabelConfigs;
+        }
+        {
+          job_name = "unifi-poller";
+          static_configs = [{ targets = [ "192.168.6.20:9130" ]; }];
+          relabel_configs = relabelConfigs;
+        }
+      ];
+    };
+
+    my.services.backup = { paths = [ "/var/lib/prometheus2" ]; };
+  };
+}
diff --git a/modules/services/rclone/default.nix b/modules/services/rclone/default.nix
new file mode 100644
index 0000000..afba321
--- /dev/null
+++ b/modules/services/rclone/default.nix
@@ -0,0 +1,37 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.my.services.rclone;
+  secrets = config.age.secrets;
+in {
+  options.my.services.rclone = with lib; {
+    enable = mkEnableOption "rclone backup service";
+  };
+
+  config = lib.mkIf cfg.enable {
+    systemd = {
+      packages = [ pkgs.rclone ];
+      timers.rclone-sync = {
+        description = "synchronize restic repository to GCS";
+        wantedBy = [ "timers.target" ];
+        partOf = [ "rclone-sync.service" ];
+        timerConfig = { OnCalendar = "02:00"; };
+      };
+      services.rclone-sync = {
+        description = "synchronize restic repository to GCS";
+        serviceConfig = let
+          rcloneOptions = "--config=${
+              secrets."rclone/config.ini".path
+            } --gcs-service-account-file=${
+              secrets."rclone/gcs_service_account.json".path
+            } --fast-list --verbose";
+        in {
+          Type = "oneshot";
+          ExecStart = [
+            "${pkgs.rclone}/bin/rclone ${rcloneOptions} sync /data/slow/backups/systems gbackup:fcuny-backups-systems"
+            "${pkgs.rclone}/bin/rclone ${rcloneOptions} sync /data/slow/backups/users gbackup:fcuny-backups-users"
+          ];
+        };
+      };
+    };
+  };
+}
diff --git a/modules/services/samba/default.nix b/modules/services/samba/default.nix
new file mode 100644
index 0000000..b5d150d
--- /dev/null
+++ b/modules/services/samba/default.nix
@@ -0,0 +1,51 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.my.services.samba;
+  makePublicShare = path: {
+    name = builtins.baseNameOf path;
+    value = {
+      inherit path;
+      browseable = "yes";
+      writeable = "no";
+      "guest ok" = "yes";
+      "guest only" = "yes";
+      "force user" = "nobody";
+    };
+  };
+in {
+  options.my.services.samba = with lib; {
+    enable = mkEnableOption "Samba";
+    publicShares = mkOption {
+      type = with types; listOf str;
+      default = [ ];
+      example = literalExample ''
+        [
+          "/data/fast/music"
+        ]
+      '';
+      description = "Which directories to share publicly";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.samba = {
+      enable = true;
+      securityType = "user";
+      extraConfig = ''
+        workgroup = WORKGROUP
+        server string = tahoe
+        netbios name = tahoe
+        security = user
+        guest account = nobody
+        mangled names = no
+        client min protocol = SMB2
+        map to guest = bad user
+        ntlm auth = true
+      '';
+      shares = with lib; (listToAttrs (map makePublicShare cfg.publicShares));
+    };
+
+    networking.firewall.allowedTCPPorts = [ 445 139 ];
+    networking.firewall.allowedUDPPorts = [ 137 138 ];
+  };
+}
diff --git a/modules/services/sourcegraph/default.nix b/modules/services/sourcegraph/default.nix
new file mode 100644
index 0000000..adf7051
--- /dev/null
+++ b/modules/services/sourcegraph/default.nix
@@ -0,0 +1,46 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.my.services.sourcegraph;
+  secrets = config.age.secrets;
+in {
+  options.my.services.sourcegraph = with lib; {
+    enable = mkEnableOption "sourcegraph server";
+    vhostName = mkOption {
+      type = types.str;
+      example = "cs.fcuny.net";
+      description = "Name for the virtual host";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    virtualisation.oci-containers.containers.sourcegraph = {
+      image = "sourcegraph/server:3.31.2";
+
+      ports = [ "127.0.0.1:7080:7080" ];
+
+      volumes = [
+        "/var/lib/sourcegraph/etc:/etc/sourcegraph"
+        "/var/lib/sourcegraph/data:/var/opt/sourcegraph"
+      ];
+
+      # Sourcegraph needs a higher nofile limit, it logs warnings
+      # otherwise (unclear whether it actually affects the service).
+      extraOptions = [ "--ulimit" "nofile=10000:10000" ];
+    };
+
+    services.nginx.virtualHosts."${cfg.vhostName}" = {
+      forceSSL = true;
+      useACMEHost = cfg.vhostName;
+      locations."/" = { proxyPass = "http://127.0.0.1:7080"; };
+    };
+
+    security.acme.certs."${cfg.vhostName}}" = {
+      dnsProvider = "gcloud";
+      credentialsFile = secrets."acme/credentials".path;
+    };
+
+    my.services.backup = {
+      paths = [ "/var/lib/sourcegraph/etc" "/var/lib/sourcegraph/data" ];
+    };
+  };
+}
diff --git a/modules/services/ssh-server/default.nix b/modules/services/ssh-server/default.nix
new file mode 100644
index 0000000..ce5d4c8
--- /dev/null
+++ b/modules/services/ssh-server/default.nix
@@ -0,0 +1,17 @@
+{ ... }: {
+  services.openssh = {
+    enable = true;
+    permitRootLogin = "yes";
+    passwordAuthentication = false;
+  };
+
+  programs.mosh.enable = true;
+
+  networking.firewall.allowedTCPPorts = [ 22 ];
+
+  # Relevant ports for mosh
+  networking.firewall.allowedUDPPortRanges = [{
+    from = 6000;
+    to = 6100;
+  }];
+}
diff --git a/modules/services/syncthing/default.nix b/modules/services/syncthing/default.nix
new file mode 100644
index 0000000..7f7ed3a
--- /dev/null
+++ b/modules/services/syncthing/default.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.my.services.syncthing;
+  secrets = config.age.secrets;
+in {
+  options.my.services.syncthing = with lib; {
+    enable = mkEnableOption "syncthing service";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.syncthing = {
+      enable = true;
+      openDefaultPorts = true;
+      user = "fcuny";
+      group = "users";
+      dataDir = "/home/fcuny/.local/state/syncthing";
+      cert = secrets."syncthing/cert".path;
+      key = secrets."syncthing/key".path;
+
+      folders.Documents = {
+        path = "/home/fcuny/documents";
+        devices = [ "aptos" "tahoe" ];
+      };
+
+      folders.PixelCamera = {
+        path = "/home/fcuny/media/pixel/camera";
+        id = "pixel_5_vwsr-photos";
+        devices = lib.attrNames config.services.syncthing.devices;
+      };
+
+      devices = {
+        aptos = {
+          id =
+            "JAN5UMH-2FAQQ7S-KLQ2YXM-C7KKK7U-HVHUK7I-CWOZQRM-VLQSO63-ZTP4WAN";
+          introducer = false;
+        };
+        tahoe = {
+          id =
+            "4Y36C3Y-LUTO6LD-JXNV73B-FLXSTNP-5Q3CSPY-HESHTPH-EDYA54K-WEICJAJ";
+          introducer = true;
+        };
+        pixel = {
+          id =
+            "J3JQFCJ-MY5RCF7-4NXMVU5-2JECKWO-UHFUS5T-KO64EMB-RNUV4F2-ZQ7Z6A6";
+          introducer = false;
+        };
+      };
+    };
+  };
+}
diff --git a/modules/services/tailscale/default.nix b/modules/services/tailscale/default.nix
new file mode 100644
index 0000000..cad1cad
--- /dev/null
+++ b/modules/services/tailscale/default.nix
@@ -0,0 +1,13 @@
+{ config, lib, ... }:
+let cfg = config.my.services.tailscale;
+in {
+
+  options.my.services.tailscale = with lib; {
+    enable = mkEnableOption "tailscale configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.tailscale.enable = true;
+    networking.firewall.trustedInterfaces = [ "tailscale0" ];
+  };
+}
diff --git a/modules/services/thermald/default.nix b/modules/services/thermald/default.nix
new file mode 100644
index 0000000..8325b86
--- /dev/null
+++ b/modules/services/thermald/default.nix
@@ -0,0 +1,10 @@
+# thermal control management
+{ config, lib, ... }:
+let cfg = config.my.services.thermald;
+in {
+  options.my.services.thermald = {
+    enable = lib.mkEnableOption "thermald configuration";
+  };
+
+  config = lib.mkIf cfg.enable { services.thermald = { enable = true; }; };
+}
diff --git a/modules/services/tlp/default.nix b/modules/services/tlp/default.nix
new file mode 100644
index 0000000..2f818e5
--- /dev/null
+++ b/modules/services/tlp/default.nix
@@ -0,0 +1,24 @@
+# TLP power management
+{ config, lib, ... }:
+let cfg = config.my.services.tlp;
+in {
+  options.my.services.tlp = {
+    enable = lib.mkEnableOption "TLP power management configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.tlp = {
+      enable = true;
+
+      settings = {
+        # Set CPU scaling aggressively when power is not an issue
+        CPU_SCALING_GOVERNOR_ON_AC = "performance";
+        CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
+
+        # Keep charge between 60% and 80% to preserve battery life
+        START_CHARGE_THRESH_BAT0 = 60;
+        STOP_CHARGE_THRESH_BAT0 = 80;
+      };
+    };
+  };
+}
diff --git a/modules/services/transmission/default.nix b/modules/services/transmission/default.nix
new file mode 100644
index 0000000..57bea77
--- /dev/null
+++ b/modules/services/transmission/default.nix
@@ -0,0 +1,54 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.services.transmission;
+  secrets = config.age.secrets;
+in {
+  options.my.services.transmission = with lib; {
+    enable = mkEnableOption "transmission torrent server";
+    vhostName = mkOption {
+      type = types.str;
+      example = "music.fcuny.net";
+      description = "Name for the virtual host";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.transmission = {
+      enable = true;
+      group = "nas";
+      performanceNetParameters = true;
+      home = "/data/fast/torrents";
+      settings = {
+        dht-enabled = false;
+        cache-size-mb = 128;
+        peer-port = 52213;
+        peer-port-random-low = 49152;
+        peer-port-random-high = 65535;
+        message-level = 2;
+
+        rpc-enabled = true;
+        rpc-host-whitelist-enabled = false;
+        verify-threads = 4;
+      };
+    };
+
+    services.nginx.virtualHosts."${cfg.vhostName}" = {
+      forceSSL = true;
+      useACMEHost = cfg.vhostName;
+      locations."/" = {
+        proxyPass = "http://127.0.0.1:9091";
+        proxyWebsockets = true;
+      };
+    };
+
+    security.acme.certs."${cfg.vhostName}" = {
+      dnsProvider = "gcloud";
+      credentialsFile = secrets."acme/credentials".path;
+    };
+
+    networking.firewall = {
+      allowedTCPPorts = [ 52213 ];
+      allowedUDPPorts = [ 52213 ];
+    };
+  };
+}
diff --git a/modules/services/unifi/default.nix b/modules/services/unifi/default.nix
new file mode 100644
index 0000000..1433725
--- /dev/null
+++ b/modules/services/unifi/default.nix
@@ -0,0 +1,87 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.my.services.unifi;
+  secrets = config.age.secrets;
+  allowedRules = {
+    # https://help.ubnt.com/hc/en-us/articles/218506997
+    allowedTCPPorts = [
+      8080 # Port for UAP to inform controller.
+      8880 # Port for HTTP portal redirect, if guest portal is enabled.
+      8843 # Port for HTTPS portal redirect, ditto.
+      6789 # Port for UniFi mobile speed test.
+      9130 # Port for the prometheus exporter
+    ];
+    allowedUDPPorts = [
+      3478 # UDP port used for STUN.
+      10001 # UDP port used for device discovery.
+    ];
+  };
+in {
+  options.my.services.unifi = with lib; {
+    enable = mkEnableOption "Unifi controller";
+    vhostName = mkOption {
+      type = types.str;
+      example = "music.fcuny.net";
+      description = "Name for the virtual host";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    networking.firewall = allowedRules;
+    users.users.unifi.group = "unifi";
+    users.users.unifi.isSystemUser = true;
+    users.groups.unifi = { };
+
+    services.unifi = {
+      enable = true;
+      openPorts = true;
+      unifiPackage = pkgs.unifiStable;
+    };
+
+    services.unifi-poller = {
+      enable = true;
+
+      unifi.defaults = {
+        url = "https://127.0.0.1:8443";
+        user = "unifipoller";
+        pass = secrets."unifi/unifi-poller".path;
+        verify_ssl = false;
+      };
+
+      influxdb.disable = true;
+
+      prometheus = { http_listen = ":9130"; };
+    };
+
+    systemd.services.unifi-available = {
+      description = "Wait for Unifi to be available";
+      after = [ "unifi.service" ];
+      before = [ "unifi-poller.service" ];
+      wantedBy = [ "unifi-poller.service" ];
+      serviceConfig = {
+        ExecStart =
+          "${pkgs.curl}/bin/curl --insecure 'https://localhost:8443/'";
+        Restart = "on-failure";
+        RestartSec = "10";
+        Type = "oneshot";
+      };
+    };
+
+    services.nginx.virtualHosts."${cfg.vhostName}" = {
+      forceSSL = true;
+      useACMEHost = cfg.vhostName;
+      locations."/" = {
+        proxyPass = "http://127.0.0.1:8443";
+        proxyWebsockets = true;
+      };
+    };
+
+    security.acme.certs."${cfg.vhostName}" = {
+      dnsProvider = "gcloud";
+      credentialsFile = secrets."acme/credentials".path;
+    };
+
+    my.services.backup = { paths = [ "/var/lib/unifi" ]; };
+  };
+}
diff --git a/modules/system/boot/default.nix b/modules/system/boot/default.nix
new file mode 100644
index 0000000..b037f63
--- /dev/null
+++ b/modules/system/boot/default.nix
@@ -0,0 +1,44 @@
+{ pkgs, config, lib, ... }:
+let cfg = config.my.system.boot;
+in {
+  options.my.system.boot = with lib; {
+    tmp = { clean = mkEnableOption "clean `/tmp` on boot."; };
+    initrd = {
+      network = { enable = mkEnableOption "enable SSH with initrd"; };
+    };
+  };
+
+  config = {
+    boot = {
+      loader = {
+        # Use the systemd-boot EFI boot loader.
+        systemd-boot.enable = true;
+        # Prohibits gaining root access by passing init=/bin/sh as a kernel parameter
+        systemd-boot.editor = false;
+        efi.canTouchEfiVariables = true;
+      };
+
+      kernelPackages = pkgs.linuxPackages_latest;
+      cleanTmpDir = cfg.tmp.clean;
+      tmpOnTmpfs = true;
+
+      initrd = {
+        luks.devices."system".allowDiscards = true;
+        network = lib.mkIf cfg.initrd.network.enable {
+          enable = true;
+          postCommands = ''
+            echo "cryptsetup-askpass; exit" > /root/.profile
+          '';
+          ssh = {
+            enable = true;
+            port = 2222;
+            hostKeys =
+              [ /etc/ssh/ssh_host_ed25519_key /etc/ssh/ssh_host_rsa_key ];
+            authorizedKeys =
+              config.users.users.fcuny.openssh.authorizedKeys.keys;
+          };
+        };
+      };
+    };
+  };
+}
diff --git a/modules/system/btrfs/default.nix b/modules/system/btrfs/default.nix
new file mode 100644
index 0000000..d569c78
--- /dev/null
+++ b/modules/system/btrfs/default.nix
@@ -0,0 +1,5 @@
+{ ... }:
+
+{
+  services.btrfs.autoScrub.enable = true;
+}
diff --git a/modules/system/console/default.nix b/modules/system/console/default.nix
new file mode 100644
index 0000000..c9c24b0
--- /dev/null
+++ b/modules/system/console/default.nix
@@ -0,0 +1,6 @@
+{ ... }: {
+  console = {
+    font = "Lat2-Terminus16";
+    keyMap = "us";
+  };
+}
diff --git a/modules/system/default.nix b/modules/system/default.nix
new file mode 100644
index 0000000..bf3e367
--- /dev/null
+++ b/modules/system/default.nix
@@ -0,0 +1,16 @@
+{ ... }:
+
+{
+  imports = [
+    ./boot
+    ./btrfs
+    ./console
+    ./documentation
+    ./fonts
+    ./locale
+    ./nix
+    ./packages
+    ./security
+    ./users
+  ];
+}
diff --git a/modules/system/documentation/default.nix b/modules/system/documentation/default.nix
new file mode 100644
index 0000000..67f84ff
--- /dev/null
+++ b/modules/system/documentation/default.nix
@@ -0,0 +1,14 @@
+{ config, lib, pkgs, ... }: {
+  documentation = {
+    enable = true;
+    dev.enable = true;
+    info.enable = true;
+    man = {
+      enable = true;
+      generateCaches = true;
+    };
+    nixos.enable = true;
+  };
+
+  environment.systemPackages = with pkgs; [ man-pages man-pages-posix ];
+}
diff --git a/modules/system/fonts/default.nix b/modules/system/fonts/default.nix
new file mode 100644
index 0000000..df01140
--- /dev/null
+++ b/modules/system/fonts/default.nix
@@ -0,0 +1,29 @@
+{ pkgs, config, lib, ... }:
+let cfg = config.my.systems.fonts;
+in {
+  options.my.systems.fonts = with lib; {
+    enable = mkEnableOption "fonts configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    fonts = {
+      enableDefaultFonts = true;
+      fontDir.enable = true;
+      fontconfig.enable = true;
+      fonts = with pkgs; [
+        dejavu_fonts
+        font-awesome_5
+        noto-fonts
+        noto-fonts-cjk # Chinese, Japanese, Korean
+        noto-fonts-emoji
+        noto-fonts-emoji
+        noto-fonts-extra
+        source-code-pro
+        source-sans-pro
+        source-serif-pro
+      ];
+
+      fontconfig.defaultFonts = { monospace = [ "Source Code Pro" ]; };
+    };
+  };
+}
diff --git a/modules/system/locale/default.nix b/modules/system/locale/default.nix
new file mode 100644
index 0000000..2026764
--- /dev/null
+++ b/modules/system/locale/default.nix
@@ -0,0 +1,7 @@
+# Language settings
+{ ... }: {
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  time.timeZone = "America/Los_Angeles";
+}
diff --git a/modules/system/nix/default.nix b/modules/system/nix/default.nix
new file mode 100644
index 0000000..2ad20c3
--- /dev/null
+++ b/modules/system/nix/default.nix
@@ -0,0 +1,16 @@
+# Nix related settings
+{ lib, pkgs, ... }: {
+  nix = {
+    package = pkgs.nixFlakes;
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+    autoOptimiseStore = true;
+    trustedUsers = [ "root" "@wheel" ];
+
+    gc = {
+      automatic = true;
+      options = "--delete-older-than 14d";
+    };
+  };
+}
diff --git a/modules/system/packages/default.nix b/modules/system/packages/default.nix
new file mode 100644
index 0000000..3747f6e
--- /dev/null
+++ b/modules/system/packages/default.nix
@@ -0,0 +1,51 @@
+# Common packages
+{ config, lib, pkgs, ... }:
+with lib;
+let linuxpkgs = config.boot.kernelPackages;
+in {
+
+  # It's always useful to have bash around
+  environment.shells = with pkgs; [ bashInteractive ];
+
+  environment.systemPackages = with pkgs; [
+    binutils
+    cacert
+    curl
+    dmidecode
+    ethtool
+    flameGraph
+    git
+    htop
+    hwdata
+    iftop
+    iptraf-ng
+    linuxPackages.cpupower
+    linuxpkgs.perf
+    lm_sensors
+    lsb-release
+    lsof
+    man-pages
+    mg
+    mtr
+    numactl
+    openssl
+    openssl
+    parted
+    pciutils
+    perf-tools
+    powertop
+    rsync
+    sqlite
+    strace
+    tcpdump
+    tmux
+    traceroute
+    unzip
+    usbutils
+    vim
+    wget
+    wireguard
+  ];
+
+  programs.bcc.enable = true;
+}
diff --git a/modules/system/security/default.nix b/modules/system/security/default.nix
new file mode 100644
index 0000000..1181e6a
--- /dev/null
+++ b/modules/system/security/default.nix
@@ -0,0 +1,6 @@
+{ ... }:
+
+{
+  security.sudo.wheelNeedsPassword = false;
+  security.polkit.enable = true;
+}
diff --git a/modules/system/users/default.nix b/modules/system/users/default.nix
new file mode 100644
index 0000000..3086f18
--- /dev/null
+++ b/modules/system/users/default.nix
@@ -0,0 +1,39 @@
+{ config, lib, pkgs, ... }:
+let
+  groupExists = grp: builtins.hasAttr grp config.users.groups;
+  groupsIfExist = builtins.filter groupExists;
+in {
+  # Users are managed through this configuration. If a user is added
+  # manually, it will be removed on system activation.
+  users.mutableUsers = false;
+
+  users.groups.fcuny = { gid = 1000; };
+  users.users.fcuny = {
+    isNormalUser = true;
+    uid = 1000;
+    group = "fcuny";
+    home = "/home/fcuny";
+    shell = pkgs.zsh;
+    extraGroups = groupsIfExist [
+      "docker"
+      "users"
+      "nas" # in order to access to files downloaded by transmission
+      "wheel" # `sudo` for the user.
+      "cdrom" # in order to read from the bluray
+    ];
+    hashedPassword =
+      "$6$i.z1brxtb44JAEco$fDD2Izl.zRR9vBCB2VBKPScChGw38EEl7QEiBTJ/EwgP3oSL0X3ZHq0PJ.RtqzBsWTPUjl4F3MKOBMhnaAPr6.";
+    openssh.authorizedKeys.keys = [
+      # aptos
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIdlm/qoR/dnMjZhVSTtqFzkgN3Yf9eQ3pgKMiipg+dl"
+      # work
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINSWhXmnUplM+xltD0sYiJ6AsjkwHvbjTYLA7GHXHja9"
+    ];
+  };
+
+  users.users.root = {
+    hashedPassword = null;
+    openssh.authorizedKeys.keys =
+      config.users.users.fcuny.openssh.authorizedKeys.keys;
+  };
+}
diff --git a/profiles/bluetooth/default.nix b/profiles/bluetooth/default.nix
new file mode 100644
index 0000000..ffd05b4
--- /dev/null
+++ b/profiles/bluetooth/default.nix
@@ -0,0 +1,9 @@
+{ config, lib, ... }:
+let cfg = config.my.profiles.bluetooth;
+in {
+  options.my.profiles.bluetooth = with lib; {
+    enable = mkEnableOption "bluetooth profile";
+  };
+
+  config = lib.mkIf cfg.enable { my.hardware.bluetooth.enable = true; };
+}
diff --git a/profiles/default.nix b/profiles/default.nix
new file mode 100644
index 0000000..d683b58
--- /dev/null
+++ b/profiles/default.nix
@@ -0,0 +1,4 @@
+{ ... }: {
+  imports =
+    [ ./bluetooth ./laptop ./gtk ./trusted ./wm ./desktop ./multimedia ];
+}
diff --git a/profiles/desktop/default.nix b/profiles/desktop/default.nix
new file mode 100644
index 0000000..c0c4a9f
--- /dev/null
+++ b/profiles/desktop/default.nix
@@ -0,0 +1,34 @@
+{ config, lib, ... }:
+let cfg = config.my.profiles.desktop;
+in {
+  options.my.profiles.desktop = with lib; {
+    enable = mkEnableOption "desktop profile";
+  };
+  config = lib.mkIf cfg.enable {
+    my = {
+      systems = { fonts.enable = true; };
+      services = {
+        gnome.enable = true;
+        # we need avahi in order to use the printer/scanner
+        avahi.enable = true;
+      };
+      home = {
+        emacs.enable = true;
+        direnv.enable = true;
+        drone-cli.enable = true;
+        firefox.enable = true;
+        pcmanfm.enable = true;
+        terminal.program = "alacritty";
+        xdg.enable = true;
+        eog.enable = true;
+        evince.enable = true;
+        transmission-remote.enable = true;
+      };
+      profiles = {
+        gtk.enable = true;
+        wm.windowManager = "sway";
+      };
+      programs = { sway.enable = true; };
+    };
+  };
+}
diff --git a/profiles/gtk/default.nix b/profiles/gtk/default.nix
new file mode 100644
index 0000000..c84832b
--- /dev/null
+++ b/profiles/gtk/default.nix
@@ -0,0 +1,13 @@
+{ config, lib, ... }:
+let cfg = config.my.profiles.gtk;
+in {
+  options.my.profiles.gtk = with lib; {
+    enable = mkEnableOption "gtk profile";
+  };
+  config = lib.mkIf cfg.enable {
+    # Allow setting GTK configuration using home-manager
+    programs.dconf.enable = true;
+    # GTK theme configuration
+    my.home.gtk.enable = true;
+  };
+}
diff --git a/profiles/laptop/default.nix b/profiles/laptop/default.nix
new file mode 100644
index 0000000..f5288b6
--- /dev/null
+++ b/profiles/laptop/default.nix
@@ -0,0 +1,15 @@
+{ config, lib, ... }:
+let cfg = config.my.profiles.laptop;
+in {
+  options.my.profiles.laptop = with lib; {
+    enable = mkEnableOption "laptop profile";
+  };
+
+  config = lib.mkIf cfg.enable {
+    # monitors and controls temperature
+    my.services.thermald.enable = true;
+
+    # Enable TLP power management
+    my.services.tlp.enable = true;
+  };
+}
diff --git a/profiles/multimedia/default.nix b/profiles/multimedia/default.nix
new file mode 100644
index 0000000..4c1d3fe
--- /dev/null
+++ b/profiles/multimedia/default.nix
@@ -0,0 +1,12 @@
+{ config, lib, ... }:
+let cfg = config.my.profiles.multimedia;
+in {
+  options.my.profiles.multimedia = with lib; {
+    enable = mkEnableOption "multimedia profile";
+  };
+  config = lib.mkIf cfg.enable {
+    my.home.vlc.enable = true;
+    my.home.mpv.enable = true;
+    my.home.sublime-music.enable = true;
+  };
+}
diff --git a/profiles/trusted/default.nix b/profiles/trusted/default.nix
new file mode 100644
index 0000000..927ba45
--- /dev/null
+++ b/profiles/trusted/default.nix
@@ -0,0 +1,22 @@
+{ config, lib, ... }:
+let
+  cfg = config.my.profiles.trusted;
+  isEnabled = config.my.home.wm.windowManager == "sway";
+in {
+  options.my.profiles.trusted = with lib; {
+    enable = mkEnableOption "trusted profile";
+  };
+  config = lib.mkIf cfg.enable {
+    my.home.ssh.enable = true;
+    my.home.gpg = {
+      enable = true;
+      pinentry = "gnome3";
+      defaultKey = "23348B57F01D4234B5CFBA0923208AC01EB6EEA1";
+    };
+    my.home.gcloud.enable = true;
+    my.home.mail.enable = true;
+    my.home.pass.enable = true;
+    my.home.seahorse.enable = isEnabled;
+    my.services.syncthing.enable = true;
+  };
+}
diff --git a/profiles/wm/default.nix b/profiles/wm/default.nix
new file mode 100644
index 0000000..7b1fe39
--- /dev/null
+++ b/profiles/wm/default.nix
@@ -0,0 +1,18 @@
+{ config, lib, ... }:
+let cfg = config.my.profiles.wm;
+in {
+  options.my.profiles.wm = with lib; {
+    windowManager = mkOption {
+      type = with types; nullOr (enum [ "sway" ]);
+      default = null;
+      example = "sway";
+      description = "Which window manager to use";
+    };
+  };
+  config = lib.mkMerge [
+    (lib.mkIf (cfg.windowManager == "sway") {
+      # Enable sway
+      my.home.wm.windowManager = "sway";
+    })
+  ];
+}
diff --git a/users/fcuny/blog/Dockerfile b/users/fcuny/blog/Dockerfile
new file mode 100644
index 0000000..64c0f97
--- /dev/null
+++ b/users/fcuny/blog/Dockerfile
@@ -0,0 +1,7 @@
+FROM klakegg/hugo:0.91.2-ext-alpine-onbuild AS hugo
+
+FROM pierrezemb/gostatic
+
+COPY --from=hugo /target /srv/http/
+
+CMD ["-port", "8080" , "-https-promote"]
diff --git a/users/fcuny/blog/README.org b/users/fcuny/blog/README.org
new file mode 100644
index 0000000..1342eeb
--- /dev/null
+++ b/users/fcuny/blog/README.org
@@ -0,0 +1,8 @@
+#+TITLE: fcuny.net
+
+My personal blog.
+
+* Run
+The dependencies are managed with nix. Running =nix run= will start the hugo server.
+* Deploy
+You can deploy the site by running [[file:scripts/deploy.sh][scripts/deploy.sh]].
diff --git a/users/fcuny/blog/archetypes/default.md b/users/fcuny/blog/archetypes/default.md
new file mode 100644
index 0000000..7ce2f1a
--- /dev/null
+++ b/users/fcuny/blog/archetypes/default.md
@@ -0,0 +1,5 @@
+---
+title: "{{ replace .Name "-" " " | title }}"
+date: {{ .Date }}
+---
+
diff --git a/users/fcuny/blog/config.toml b/users/fcuny/blog/config.toml
new file mode 100644
index 0000000..8cb0c62
--- /dev/null
+++ b/users/fcuny/blog/config.toml
@@ -0,0 +1,46 @@
+baseURL = "https://fcuny.net/"
+languageCode = "en-us"
+title = "Franck's rambling"
+publishDir = "docs"
+enableGitInfo = true
+
+[params]
+  homeText = "A collection of posts"
+
+[author]
+  name = "Franck Cuny"
+  email = "franck@fcuny.net"
+
+[taxonomies]
+  tag = "tags"
+
+[permalinks]
+  blog = "/blog/:slug/"
+  tags = "/tags/:slug/"
+
+[menu]
+
+[markup]
+  [markup.highlight]
+    anchorLineNos = false
+    codeFences = false
+    guessSyntax = false
+    hl_Lines = ""
+    lineAnchors = ""
+    lineNoStart = 1
+    lineNos = false
+    lineNumbersInTable = false
+    noClasses = true
+    style = "manni"
+    tabWidth = 4
+
+[mediaTypes."application/atom"]
+  suffixes = ["xml"]
+
+[outputFormats.Atom]
+  mediaType = "application/atom"
+  baseName = "feed"
+  isPlainText = false
+
+[outputs]
+  home = [ "HTML", "Atom" ]
diff --git a/users/fcuny/blog/content/blog/git-link-and-sourcegraph.org b/users/fcuny/blog/content/blog/git-link-and-sourcegraph.org
new file mode 100644
index 0000000..3ab5f4b
--- /dev/null
+++ b/users/fcuny/blog/content/blog/git-link-and-sourcegraph.org
@@ -0,0 +1,49 @@
+#+TITLE: emacs' git-link and sourcegraph
+#+TAGS[]: emacs git
+#+DATE: <2021-08-24 Tue>
+
+I use [[https://sourcegraph.com/][sourcegraph]] for searching code, and I sometimes need to share a link to the source code I'm looking at in a buffer. For this, the package [[https://github.com/sshaw/git-link][=git-link=]] is great.
+
+To integrate sourcegraph and =git-link=, the [[https://github.com/sshaw/git-link#sourcegraph][documentation]] recommends adding a remote entry named =sourcegraph= in the repository, like this:
+
+#+begin_src sh
+git remote add sourcegraph https://sourcegraph.com/github.com/sshaw/copy-as-format
+#+end_src
+
+The next time you run =M-x git-link= in a buffer, it will use the URL associated with that remote. That's works great, except that now you need to add this for every repository. Instead, for my usage, I came up with the following solution:
+
+#+begin_src elisp
+(use-package git-link
+  :ensure t
+  :after magit
+  :bind (("C-c g l" . git-link)
+         ("C-c g a" . git-link-commit))
+  :config
+  (defun fcuny/get-sg-remote-from-hostname (hostname)
+    (format "sourcegraph.<$domain>.<$tld>/%s" hostname))
+
+  (defun fcuny/git-link-work-sourcegraph (hostname dirname filename _branch commit start end)
+    ;;; For a given repository, build the proper link for sourcegraph.
+    ;;; Use the default branch of the repository instead of the
+    ;;; current one (we might be on a feature branch that is not
+    ;;; available on the remote).
+    (require 'magit-branch)
+    (let ((sg-base-url (fcuny/get-sg-remote-from-hostname hostname))
+          (main-branch (magit-main-branch)))
+      (git-link-sourcegraph sg-base-url dirname filename main-branch commit start end)))
+
+  (defun fcuny/git-link-commit-work-sourcegraph (hostname dirname commit)
+    (let ((sg-base-url (fcuny/get-sg-remote-from-hostname hostname)))
+      (git-link-commit-sourcegraph sg-base-url dirname commit)))
+
+  (add-to-list 'git-link-remote-alist '("twitter" fcuny/git-link-work-sourcegraph))
+  (add-to-list 'git-link-commit-remote-alist '("twitter" fcuny/git-link-commit-work-sourcegraph))
+
+  (setq git-link-open-in-browser 't))
+#+end_src
+
+We use different domains to host various git repositories at work (e.g. =git.$work=, =gitfoo.$work=, etc). Each of them map to a different URI for sourcegraph (e.g. =sourcegraph.$work/gitfoo=).
+
+=git-link-commit-remote-alist= is an [[https://www.gnu.org/software/emacs/manual/html_node/elisp/Association-Lists.html][association list]] that takes a regular expression and a function. The custom function receives the hostname for the remote repository, which is then used to generate the URI for our sourcegraph instance. I then call =git-link-sourcegraph= replacing the hostname with the URI for sourcegraph.
+
+Now I can run =M-x git-link= in any repository where the host for the origin git repository matches =twitter= without having to setup the custom remote first.
diff --git a/users/fcuny/blog/content/blog/google-doc-failure.org b/users/fcuny/blog/content/blog/google-doc-failure.org
new file mode 100644
index 0000000..b4d449d
--- /dev/null
+++ b/users/fcuny/blog/content/blog/google-doc-failure.org
@@ -0,0 +1,56 @@
+#+TITLE: Google Doc Failures
+#+TAGS[]: documentation process
+#+DATE: <2021-04-11 Sun>
+
+In most use cases, Google Doc is an effective tool to create "write once, read never" documents.
+
+* Convenience
+Google Doc (GDoc from now on) is the most common way of writing and sharing documents at my current job. It's very easy to start a new document, even more since we can now point our browser to https://doc.new and start typing right away.
+
+Like most of my co-workers, I use it frequently during the day. Some of these documents are draft for some communication that I want others to review before I share with a broader audience; it can be a [[https://en.wikipedia.org/wiki/Request_for_Comments][Request For Comments]] for a project; meeting notes for others to read; information that I need to capture during an incident or a debugging session; interviews notes; etc.
+
+I would not be surprised if the teams I work closely with generate 50 new documents each week.
+* ETOOMANYTABS
+I have a tendency of having hundreds of open tabs in my browser during the week. A majority of these tabs are GDocs, and I think this is one of the true failure of the product. Why do I have so many tabs ? There's mainly two reasons.
+
+The first reason is a problem with Chrome's UX itself: it happily let me open the same URL as many times as I want in as many tabs, instead of sending me to the already opened tab if the document is loaded. It's not uncommon that I find the same document opened in 5 different tabs.
+
+The second reason, and it's the most important one, I know that if I need to read or comment on a doc and I close the tab, I'll likely never find that document again, or will completely forget about it.
+* Discoverability
+In 'the old days', you'd start a new document in Word or LibreOffice, and as you hit "save" for the first time, you've two decisions to make: how am I going to name that file, and where am I going to save it on disk.
+
+With GDoc these questions don't have to be answered, you don't have to name the file, and it does not matter where it lives. I've likely hundreds of docs named 'untitled' in my "drive". I also don't have to think about where they will live, because they are saved automatically for me. I'm sure there's hundreds of studies that show that these two simple steps are actually complex for many users and creates useless friction (in which folder do I store it; should I organize the docuemnts by team, years, projects; do I name it with the date and the current project; etc.).
+
+GDoc being a Google product, it seems pretty obvious that they would come up with a better solution: let's not organize in a strict hierarchy these files, and let's instead search for them.
+
+Unfortunately, GDoc's search is really poor (and I'm being kind). By default most of us start by looking for some words we know are in the doc, maybe even in the title. But when working on a multiple projects that are related to the same technology, you suddenly get hundreds of documents matching your query. It's unclear how the returned set is ordered (by date ? by author ? by some scoring that is invisible to me ?).
+
+You can also search by owners, but here is another annoying bit: I think about owner as author, so I usually type =author:foo= before realizing it does not work. And that implies you already know who's the owner of the document. In the case of TDDs (Technical Design Document), I might know which team is behind it, but rarely who's the actual author.
+
+I could search for the title, but I rarely remember or know the name of the document I'm looking for. I could also be looking by keywords, but when working on a project with tens of related documents, you have to open all the returned docs to see which one is the correct one.
+
+And then what about new members joining your the team ? They don't know which docs exist, who wrote them, and how they are named. They end up searching and hoping that something good will be returned.
+* Workflows
+More and more we create workflows around these documents: some of the docs are TDDs that are going through reviews; others are decision documents that require input from multiple teams and are pending approval; others are road map documents that also go through some review process.
+
+As a result we create templates for all kind of documents, with usually something like "draft → reviews → approved/rejected" at the top. We expect the owner of the doc to mark in bold what's the status of the doc to help the reader understand in what state the document is. It's difficult to keep track of open actions and comments. Yes, there's a way to get a list of all of them, but it's not in an obvious place.
+
+As a result, some engineers in my team built an external dashboard with swim lanes which captures the state of a document. We add new document with their URLs, add who are the reviewers, and we move the doc between the lanes. Now we have to operate a service and a database to keep track of the status of documents in GDoc.
+* Alternatives
+When it comes to technical document, I find that [[https://caitiem.com/2020/03/29/design-docs-markdown-and-git/][approach]] much more interesting. Some open source projects have adopted a similar workflow ([[https://github.com/kubernetes/enhancements/tree/master/keps][Kubernetes]], [[https://github.com/golang/proposal][Go]]).
+
+A new document starts its life as a text file (using what ever markup language your team/company prefers). The document is submitted for review, and the people who need to be consulted are added as reviewers. They can now comment on the document, the author can address them, mark them as resolved. It's clear in which state the document is: it's either in review, committed, or rejected. With this approach you also end up with a clear history, as time moves on you can amend the document by submitting a change, and the change goes through the same process.
+
+New comers will find the document in the repository, and if they want to see the conversation they can open the review associated with the original change. They can also see how the document evolved over time. It's also easy to publish these documents on an internal website, using a static site generator for example.
+
+One of the thing that I think are critical, is that all of that is done using the tools the engineers are already using for their day to day job: a text editor, a version control system, a code review tool.
+
+There's obviously challenges with this approach too:
++ *it's more heavy handed*: not every one likes to write in a text editor using a markup language. It can requires some time to learn or get used to the syntax
++ *it's harder to integrate schema / visuals*: but having them checked in in the repository also improves the discoverability
+
+It's also true that no all documents suffer the same challenges for discoverability:
++ meeting notes are usually linked to meeting invites (however if you were not part of the meeting, you end up with the same challenges to discover them)
++ drafts for communications are usually not relevant once the communication has been sent
++ interview notes are usually transferred to some tools for HR when the feedback is submitted
+
diff --git a/users/fcuny/blog/content/blog/leaving-twitter.org b/users/fcuny/blog/content/blog/leaving-twitter.org
new file mode 100644
index 0000000..9bc5027
--- /dev/null
+++ b/users/fcuny/blog/content/blog/leaving-twitter.org
@@ -0,0 +1,10 @@
+#+TITLE: Leaving Twitter
+#+DATE: <2022-01-15 Sat>
+
+January 7th 2022 was my last day at Twitter, after more than 7 years at the company.
+
+The first few years I worked as an SRE in the core-storage team, with the PUB/SUB and key-value store teams.
+
+I spend the last four years working with the Compute team, both maintaining and operating our (very large) Aurora/Mesos clusters, and also working on the adoption of kubernetes, both for our data centers and for the cloud. Working with Compute was extremely fulfilling to me, as I worked closely with our hardware engineering and kernel/operating system teams.
+
+During these 7 years, I was constantly pushed by my coworkers to grow, to step up to new challenges, and I learned a tremendous amount about running large scale distributed systems. I'm extremely glad for that experience, it was by far the most interesting and challenging job I've ever had so far.
diff --git a/users/fcuny/blog/content/blog/tailscale-docker-https.org b/users/fcuny/blog/content/blog/tailscale-docker-https.org
new file mode 100644
index 0000000..14e4cf1
--- /dev/null
+++ b/users/fcuny/blog/content/blog/tailscale-docker-https.org
@@ -0,0 +1,121 @@
+#+TITLE: Tailscale, Docker and HTTPS
+#+TAGS[]: docker tailscale traefik
+#+DATE: <2021-12-29 Wed>
+
+I run a number of services in my home network. For the majority of these services, I don't want to make them available on the internet, I want to only be able to access them when I'm on my home network. However, sometimes I'm not at home and I still want to access them. So far I've been using plain [[https://www.wireguard.com/][wireguard]] to achieve this. While the initial configuration for wireguard is pretty simple, it starts to be a bit more cumbersome as I add more hosts/containers. It's also not easy to share keys with other folks if I want to give access to some of the machines or services. For that reason I decided to give a look at [[https://tailscale.com/][tailscale]].
+
+There's already a lot of articles about tailscale and how to use and configure it. Their [[https://tailscale.com/kb/][documentation]] is also pretty good, so I won't cover the initial setup.
+
+As stated above, I want to access some of my services that are running as docker containers from anywhere. For web services, I want to use them through HTTPS, with a valid certificate, and without having to remember on which port the service it's listening. I also don't want to setup a PKI in my home lab for that (and I'm also not interested in configuring split DNS), and instead I prefer to use [[https://letsencrypt.org/][let's encrypt]] with a proper subdomain that is unique for each service.
+
+The [[https://tailscale.com/kb/1054/dns/][tailscale documentation]] has two suggestions for this:
+- use their magicDNS feature / split DNS
+- setup a subdomain on a public domain
+
+Since I already have a public domain that I use for my home network, I decided to go with the second option (I'm also uncertain how to achieve my goal using magicDNS without running tailscale inside the container).
+
+The public domain I'm using is managed through [[https://cloud.google.com/dns/docs/tutorials/create-domain-tutorial][Google Cloud Domain]]. I create a new record for the services I want to run (for example, ~dash~ for my instance of grafana), using the IP address from the tailscale node the service runs on (e.g. 100.83.51.12).
+
+For routing the traffic I use [[https://traefik.io/][traefik]]. The configuration for traefik looks like this:
+#+begin_src yaml
+global:
+  sendAnonymousUsage: false
+providers:
+  docker:
+    exposedByDefault: false
+entryPoints:
+  http:
+    address: ":80"
+  https:
+    address: ":443"
+certificatesResolvers:
+  dash:
+    acme:
+      email: franck@fcuny.net
+      storage: acme.json
+      dnsChallenge:
+        provider: gcloud
+#+end_src
+
+The important bit here is the ~certificatesResolvers~ part. I'll be using the [[https://doc.traefik.io/traefik/user-guides/docker-compose/acme-dns/][dnsChallenge]] instead of the [[https://doc.traefik.io/traefik/user-guides/docker-compose/acme-http/][httpChallenge]] to obtain the certificate from let's encrypt. For this to work, I need to specify the ~provider~ to be [[https://go-acme.github.io/lego/dns/gcloud/][gcloud]]. I'll also need a service account (see [[https://cloud.google.com/docs/authentication/production#providing_credentials_to_your_application][this doc]] to create it). I run ~traefik~ in a docker container, and the ~systemd~ unit file is below. The required bits for using the ~dnsChallenge~ with ~gcloud~ are:
+- the environment variable ~GCP_SERVICE_ACCOUNT_FILE~: it contains the credentials so that ~traefik~ can update the DNS record for the challenge
+- the environment variable ~GCP_PROJECT~: the name of the GCP project
+- mounting the service account file inside the container (I store it on the host under ~/data/containers/traefik/config/sa.json~)
+
+#+begin_src systemd
+[Unit]
+Description=traefik proxy
+Documentation=https://doc.traefik.io/traefik/
+After=docker.service
+Requires=docker.service
+
+[Service]
+Restart=on-failure
+ExecStartPre=-/usr/bin/docker kill traefik
+ExecStartPre=-/usr/bin/docker rm traefik
+ExecStartPre=/usr/bin/docker pull traefik:latest
+
+ExecStart=/usr/bin/docker run \
+  -p 80:80 \
+  -p 9080:8080 \
+  -p 443:443 \
+  --name=traefik \
+  -e GCE_SERVICE_ACCOUNT_FILE=/var/run/gcp-service-account.json \
+  -e GCE_PROJECT= gcp-super-project \
+  --volume=/data/containers/traefik/config/acme.json:/acme.json \
+  --volume=/data/containers/traefik/config/traefik.yml:/etc/traefik/traefik.yml:ro \
+  --volume=/data/containers/traefik/config/sa.json:/var/run/gcp-service-account.json \
+  --volume=/var/run/docker.sock:/var/run/docker.sock:ro \
+  traefik:latest
+ExecStop=/usr/bin/docker stop traefik
+
+[Install]
+WantedBy=multi-user.target
+#+end_src
+
+As an example, I run [[https://grafana.com/][grafana]] on my home network to view metrics from the various containers / hosts. Let's pretend I use ~example.net~ as my domain. I want to be able to access ~grafana~ via https://dash.example.net. Here's the ~systemd~ unit configuration I use for this:
+
+#+begin_src systemd
+[Unit]
+Description=Grafana in a docker container
+Documentation=https://grafana.com/docs/
+After=docker.service
+Requires=docker.service
+
+[Service]
+Restart=on-failure
+RuntimeDirectory=grafana
+ExecStartPre=-/usr/bin/docker kill grafana-server
+ExecStartPre=-/usr/bin/docker rm grafana-server
+ExecStartPre=-/usr/bin/docker pull grafana/grafana:latest
+
+ExecStart=/usr/bin/docker run \
+  -p 3000:3000 \
+  -e TZ='America/Los_Angeles' \
+  --name grafana-server \
+  -v /data/containers/grafana/etc/grafana:/etc/grafana \
+  -v /data/containers/grafana/var/lib/grafana:/var/lib/grafana \
+  -v /data/containers/grafana/var/log/grafana:/var/log/grafana \
+  --user=grafana \
+  --label traefik.enable=true \
+  --label traefik.http.middlewares.grafana-https-redirect.redirectscheme.scheme=https \
+  --label traefik.http.middlewares.grafana-https-redirect.redirectscheme.permanent=true \
+  --label traefik.http.routers.grafana-http.rule=Host(`dash.example.net`) \
+  --label traefik.http.routers.grafana-http.entrypoints=http \
+  --label traefik.http.routers.grafana-http.service=grafana-svc \
+  --label traefik.http.routers.grafana-http.middlewares=grafana-https-redirect \
+  --label traefik.http.routers.grafana-https.rule=Host(`dash.example.net`) \
+  --label traefik.http.routers.grafana-https.entrypoints=https \
+  --label traefik.http.routers.grafana-https.tls=true \
+  --label traefik.http.routers.grafana-https.tls.certresolver=dash \
+  --label traefik.http.routers.grafana-https.service=grafana-svc \
+  --label traefik.http.services.grafana-svc.loadbalancer.server.port=3000 \
+  grafana/grafana:latest
+
+ExecStop=/usr/bin/docker stop unifi-controller
+
+[Install]
+WantedBy=multi-user.target
+#+end_src
+
+Now I can access my grafana instance via HTTPS (and http://dash.example.net would redirect to HTTPS) while my tailscale interface is up on the machine I'm using (e.g. my desktop or my phone).
diff --git a/users/fcuny/blog/flake.lock b/users/fcuny/blog/flake.lock
new file mode 100644
index 0000000..8af4281
--- /dev/null
+++ b/users/fcuny/blog/flake.lock
@@ -0,0 +1,42 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1649676176,
+        "narHash": "sha256-OWKJratjt2RW151VUlJPRALb7OU2S5s+f0vLj4o1bHM=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "a4b154ebbdc88c8498a5c7b01589addc9e9cb678",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1651345462,
+        "narHash": "sha256-4wf9sMUKGBjC2jWnUwG52ychtXRKlS3LfX/HEY6DjhM=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "870249df2cc640e2278cd0bc599ebbb246b00802",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/users/fcuny/blog/flake.nix b/users/fcuny/blog/flake.nix
new file mode 100644
index 0000000..79e6953
--- /dev/null
+++ b/users/fcuny/blog/flake.nix
@@ -0,0 +1,46 @@
+{
+  description = "Franck Cuny's personal website.";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        defaultPackage = with pkgs;
+          stdenv.mkDerivation {
+            pname = "fcuny.net";
+            version = self.lastModifiedDate;
+            src = ./.;
+            buildInputs = [ hugo git ];
+            buildPhase = ''
+              mkdir -p $out
+              hugo --minify --destination $out
+            '';
+            dontInstall = true;
+          };
+
+        defaultApp = pkgs.writers.writeBashBin "run-hugo" ''
+          set -e
+          set -o pipefail
+          export PATH=${pkgs.lib.makeBinPath [ pkgs.hugo pkgs.git ]}
+          hugo server -D
+        '';
+
+        apps = {
+          deploy = pkgs.pkgs.writeShellScriptBin "run-deploy" ''
+            set -euxo pipefail
+            export PATH=${
+              pkgs.lib.makeBinPath [ pkgs.hugo pkgs.git pkgs.jq pkgs.flyctl ]
+            }:$PATH
+            bash ./scripts/deploy.sh
+          '';
+        };
+
+        devShell =
+          pkgs.mkShell { buildInputs = with pkgs; [ hugo flyctl git jq ]; };
+      });
+}
diff --git a/users/fcuny/blog/fly.toml b/users/fcuny/blog/fly.toml
new file mode 100644
index 0000000..46468c1
--- /dev/null
+++ b/users/fcuny/blog/fly.toml
@@ -0,0 +1,40 @@
+# fly.toml file generated for fcunynet on 2021-06-20T10:01:50-07:00
+
+app = "fcunynet"
+
+kill_signal = "SIGINT"
+kill_timeout = 5
+
+[build]
+  builtin = "hugo-static"
+
+[env]
+
+[experimental]
+  allowed_public_ports = []
+  auto_rollback = true
+
+[[services]]
+  http_checks = []
+  internal_port = 8080
+  protocol = "tcp"
+  script_checks = []
+
+  [services.concurrency]
+    hard_limit = 25
+    soft_limit = 20
+    type = "connections"
+
+  [[services.ports]]
+    handlers = ["http"]
+    port = 80
+
+  [[services.ports]]
+    handlers = ["tls", "http"]
+    port = 443
+
+  [[services.tcp_checks]]
+    grace_period = "1s"
+    interval = "15s"
+    restart_limit = 6
+    timeout = "2s"
diff --git a/users/fcuny/blog/layouts/_default/baseof.html b/users/fcuny/blog/layouts/_default/baseof.html
new file mode 100644
index 0000000..410e2bc
--- /dev/null
+++ b/users/fcuny/blog/layouts/_default/baseof.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<html lang="en">
+  {{ partial "head.html" . }}
+  <body>
+    {{- partial "header.html" . -}}
+    <main>
+     {{ block "main" . }}{{ end }}
+    </main>
+    {{- partial "footer.html" . -}}
+  </body>
+</html>
diff --git a/users/fcuny/blog/layouts/_default/list.html b/users/fcuny/blog/layouts/_default/list.html
new file mode 100644
index 0000000..d2c59a7
--- /dev/null
+++ b/users/fcuny/blog/layouts/_default/list.html
@@ -0,0 +1,10 @@
+{{ define "main" }}
+
+<article>
+
+  {{ $pgs := where .Data.Pages "Params.hidden" "ne" "true" }}
+  {{ partial "postlist" $pgs }}
+
+</article>
+
+{{ end }}
diff --git a/users/fcuny/blog/layouts/_default/single.html b/users/fcuny/blog/layouts/_default/single.html
new file mode 100644
index 0000000..7a85a05
--- /dev/null
+++ b/users/fcuny/blog/layouts/_default/single.html
@@ -0,0 +1,54 @@
+{{ define "main" }}
+
+<div>
+
+<h1>{{ .Title }}</h1>
+
+<div id="meta">
+  {{- $pub := .Date.Format "Jan 2, 2006" -}}
+  {{- $mod := "" -}}
+  {{- if (not .GitInfo) }}
+  {{- $mod = .Lastmod.Format "Jan 2, 2006" -}}
+  {{ else }}
+  {{- $mod = .Page.GitInfo.CommitDate.Format "Jan 2, 2006" -}}
+  {{ end -}}
+  {{ if eq $pub $mod }}
+  <div id="meta_date">published {{ $pub }}</div>
+  {{ else }}
+  <div id="meta_date">published {{ $pub }} - last modified {{ $mod }}</div>
+  {{ end }}
+  {{ if .Params.tags }}
+  <div>
+  {{ if eq (len .Params.tags) 1 }}
+  tag:
+  {{ else }}
+  tags:
+  {{ end }}
+  {{ range $idx, $tag := .Params.tags }}
+  <span id="meta_tags"><a href="/tags/{{ $tag | urlize }}/">{{ $tag }}</a></span>
+  {{ end }}
+  </div>
+  {{ end }}
+</div>
+
+{{ if .Params.toc }}
+<div id="toc_small">
+  <summary>Table of contents</summary>
+  {{ .TableOfContents }}
+</div>
+{{ end }}
+
+<article>
+{{ .Content }}
+</article>
+
+</div>
+
+{{ if .Params.toc }}
+<div id="toc">
+  <strong>Table of contents</strong>
+  {{ .TableOfContents }}
+</div>
+{{ end }}
+
+{{ end }}
diff --git a/users/fcuny/blog/layouts/index.atom.xml b/users/fcuny/blog/layouts/index.atom.xml
new file mode 100644
index 0000000..1d73f9b
--- /dev/null
+++ b/users/fcuny/blog/layouts/index.atom.xml
@@ -0,0 +1,24 @@
+<feed xmlns="http://www.w3.org/2005/Atom">
+  <title>{{ .Site.Title }}</title>
+  <link href="{{ .Permalink }}feed.xml" rel="self"/>
+  <link href="{{ .Permalink }}"/>
+  <id>{{ .Permalink }}</id>{{ with .Site.Author.name }}
+  <author>
+    <name>{{.}}</name>{{ with $.Site.Author.email }}
+    <email>{{.}}</email>{{end}}
+  </author>{{end}}
+  <generator>Hugo -- gohugo.io</generator>
+  {{ range where (first 10 (where .Site.Pages "Section" "blog")) "Params.hidden" "ne" "true" }}
+  <entry>
+    {{ `<title type="html"><![CDATA[` | safeHTML }}{{ .Title }}]]></title>
+    <link href="{{ .Permalink }}"/>
+    <id>{{ .Permalink }}</id>{{ with .Site.Params.Author }}
+    <author>
+      <name>{{.}}</name>
+    </author>{{end}}
+    {{- $fmt := "2006-01-02T15:04:05-07:00" }}
+    <published>{{ .Date.Format $fmt | safeHTML }}</published>
+    {{ `<content type="html"><![CDATA[` | safeHTML }}{{ .Content }}]]></content>
+  </entry>
+  {{ end }}
+</feed>
diff --git a/users/fcuny/blog/layouts/index.html b/users/fcuny/blog/layouts/index.html
new file mode 100644
index 0000000..38520ef
--- /dev/null
+++ b/users/fcuny/blog/layouts/index.html
@@ -0,0 +1,20 @@
+{{ define "main" }}
+
+<article>
+
+  <p>I'm a Principal SRE, currently working at <a href="https://www.roblox.com/" target="_blank">Roblox</a>. Previously I worked at <a href="https://twitter.com/TwitterEng" target="_blank">Twitter</a> for over 7 years, and my main focus was on Twitter's compute platform.</p>
+
+  <p>My general interests are in building sustainable teams, improving the management and operation of large infrastructure, and work with different teams to implement best practices around reliability and security.</p>
+
+  <h2>Posts</h2>
+  <ul>
+  {{- $pages := where site.RegularPages "Type" "in" site.Params.mainSections }}
+  {{ range $pages }}
+  {{- $fmt := "2006-01-02" }}
+  <li class="post-permalink"><span class="post-date" >{{ .Date.Format $fmt | safeHTML }}</span>, <a href="{{ .Permalink }}">{{ .Title }}</a></li>
+  {{ end }}
+  </ul>
+
+</article>
+
+{{ end }}
diff --git a/users/fcuny/blog/layouts/partials/footer.html b/users/fcuny/blog/layouts/partials/footer.html
new file mode 100644
index 0000000..e2bf7ab
--- /dev/null
+++ b/users/fcuny/blog/layouts/partials/footer.html
@@ -0,0 +1,32 @@
+<footer>
+  <a href="mailto:franck@fcuny.net" title="franck@fcuny.net">
+    <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" class="bi bi-envelope-fill" viewBox="0 0 20 20">
+      <path d="M.05 3.555A2 2 0 0 1 2 2h12a2 2 0 0 1 1.95 1.555L8 8.414.05 3.555ZM0 4.697v7.104l5.803-3.558L0 4.697ZM6.761 8.83l-6.57 4.027A2 2 0 0 0 2 14h12a2 2 0 0 0 1.808-1.144l-6.57-4.027L8 9.586l-1.239-.757Zm3.436-.586L16 11.801V4.697l-5.803 3.546Z"/>
+    </svg>
+  </a>
+
+  <a target="_blank" href="https://git.fcuny.net/fcuny" title="git.fcuny.net">
+    <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" class="bi bi-git" viewBox="0 0 20 20">
+      <path d="M15.698 7.287 8.712.302a1.03 1.03 0 0 0-1.457 0l-1.45 1.45 1.84 1.84a1.223 1.223 0 0 1 1.55 1.56l1.773 1.774a1.224 1.224 0 0 1 1.267 2.025 1.226 1.226 0 0 1-2.002-1.334L8.58 5.963v4.353a1.226 1.226 0 1 1-1.008-.036V5.887a1.226 1.226 0 0 1-.666-1.608L5.093 2.465l-4.79 4.79a1.03 1.03 0 0 0 0 1.457l6.986 6.986a1.03 1.03 0 0 0 1.457 0l6.953-6.953a1.031 1.031 0 0 0 0-1.457"/>
+    </svg>
+  </a>
+
+  <a target="_blank" href="https://twitter.com/franckcuny" title="@franckcuny">
+    <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" class="bi bi-twitter" viewBox="0 0 20 20">
+      <path d="M5.026 15c6.038 0 9.341-5.003 9.341-9.334 0-.14 0-.282-.006-.422A6.685 6.685 0 0 0 16 3.542a6.658 6.658 0 0 1-1.889.518 3.301 3.301 0 0 0 1.447-1.817 6.533 6.533 0 0 1-2.087.793A3.286 3.286 0 0 0 7.875 6.03a9.325 9.325 0 0 1-6.767-3.429 3.289 3.289 0 0 0 1.018 4.382A3.323 3.323 0 0 1 .64 6.575v.045a3.288 3.288 0 0 0 2.632 3.218 3.203 3.203 0 0 1-.865.115 3.23 3.23 0 0 1-.614-.057 3.283 3.283 0 0 0 3.067 2.277A6.588 6.588 0 0 1 .78 13.58a6.32 6.32 0 0 1-.78-.045A9.344 9.344 0 0 0 5.026 15z"/>
+    </svg>
+  </a>
+
+  <a href="/ssh.pub.sig" title="SSH public keys">
+    <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" class="bi bi-filetype-key" viewBox="0 0 20 20">
+      <path fill-rule="evenodd" d="M14 4.5V14a2 2 0 0 1-2 2h-1v-1h1a1 1 0 0 0 1-1V4.5h-2A1.5 1.5 0 0 1 9.5 3V1H4a1 1 0 0 0-1 1v9H2V2a2 2 0 0 1 2-2h5.5L14 4.5ZM3.21 11.85h-.87L.83 13.64H.79v-1.79H0v3.999h.791v-1.283l.41-.466 1.12 1.749h.951l-1.488-2.276 1.427-1.723Zm2.903 3.352h-1.79v-1.073h1.685v-.606H4.323v-1.025h1.79v-.648H3.538v3.999h2.575v-.647Zm2.243-.888v1.535h-.794v-1.52L6.223 11.85H7.1l.853 1.696h.032l.855-1.696h.856l-1.339 2.464Z"/>
+    </svg>
+  </a>
+
+  <a href="/feed.xml" title="atom feed">
+    <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" class="bi bi-rss-fill" viewBox="0 0 20 20">
+      <path d="M2 0a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V2a2 2 0 0 0-2-2H2zm1.5 2.5c5.523 0 10 4.477 10 10a1 1 0 1 1-2 0 8 8 0 0 0-8-8 1 1 0 0 1 0-2zm0 4a6 6 0 0 1 6 6 1 1 0 1 1-2 0 4 4 0 0 0-4-4 1 1 0 0 1 0-2zm.5 7a1.5 1.5 0 1 1 0-3 1.5 1.5 0 0 1 0 3z"/>
+    </svg>
+  </a>
+
+</footer>
diff --git a/users/fcuny/blog/layouts/partials/head.html b/users/fcuny/blog/layouts/partials/head.html
new file mode 100644
index 0000000..7de4fd4
--- /dev/null
+++ b/users/fcuny/blog/layouts/partials/head.html
@@ -0,0 +1,18 @@
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+
+  <link rel="canonical" href="{{ .Permalink }}">
+
+  {{ $css := "/css/custom.css"  }}
+  <link rel="stylesheet" href="{{ $css }}">
+  <link rel="alternate" href="{{ "/feed.xml" | relURL }}" type="application/atom+xml" title="ATOM feed">
+  <link rel="author" href="humans.txt" />
+
+  <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🖥️</text></svg>">
+
+  <meta name="description" content="Franck Cuny's website, with articles about computers stuff.">
+  <meta name="author" content="Franck Cuny">
+
+  <title>{{ .Title }}</title>
+</head>
diff --git a/users/fcuny/blog/layouts/partials/header.html b/users/fcuny/blog/layouts/partials/header.html
new file mode 100644
index 0000000..65900eb
--- /dev/null
+++ b/users/fcuny/blog/layouts/partials/header.html
@@ -0,0 +1,10 @@
+<header>
+  <nav class="navbar">
+    <a class="nav-bold" href="{{ .Site.BaseURL }}">~/blog</a>
+    <ul class="nav-links">
+      {{ range .Site.Menus.main }}
+      <li class="nav-item"><a class="nav-bold" href="{{ absURL .URL }}">{{ .Title }}</a></li>
+      {{ end }}
+    </ul>
+  </nav>
+</header>
diff --git a/users/fcuny/blog/layouts/partials/postlist.html b/users/fcuny/blog/layouts/partials/postlist.html
new file mode 100644
index 0000000..3d5cf04
--- /dev/null
+++ b/users/fcuny/blog/layouts/partials/postlist.html
@@ -0,0 +1,12 @@
+{{ range .GroupByDate "2006" }}
+  <h2>{{ .Key }}</h2>
+  <ul>
+    {{ range .Pages.ByDate.Reverse }}
+    <li>
+      <div>
+        <a href="{{ .Permalink }}">{{ .Title }}</a>
+      </div>
+    </li>
+    {{ end }}
+  </ul>
+{{ end }}
diff --git a/users/fcuny/blog/layouts/taxonomy/tag.html b/users/fcuny/blog/layouts/taxonomy/tag.html
new file mode 100644
index 0000000..2b7d98a
--- /dev/null
+++ b/users/fcuny/blog/layouts/taxonomy/tag.html
@@ -0,0 +1,6 @@
+{{ define "main" }}
+
+  {{ $pgs := where .Data.Pages "Params.hidden" "ne" "true" }}
+  {{ partial "postlist" $pgs }}
+
+{{ end }}
diff --git a/users/fcuny/blog/scripts/deploy.sh b/users/fcuny/blog/scripts/deploy.sh
new file mode 100755
index 0000000..69ad82a
--- /dev/null
+++ b/users/fcuny/blog/scripts/deploy.sh
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+git diff --exit-code
+git diff --staged --exit-code
+
+flyctl deploy
+
+VERSION=$(flyctl info -j |jq -r '.App | "fcuny.net/v\(.Version)"')
+
+git tag -a --message ${VERSION} ${VERSION}
+git push origin --all
+git push origin --tags
+
+flyctl agent stop
diff --git a/users/fcuny/blog/static/CNAME b/users/fcuny/blog/static/CNAME
new file mode 100644
index 0000000..7398ba2
--- /dev/null
+++ b/users/fcuny/blog/static/CNAME
@@ -0,0 +1 @@
+fcuny.net
\ No newline at end of file
diff --git a/users/fcuny/blog/static/css/custom.css b/users/fcuny/blog/static/css/custom.css
new file mode 100644
index 0000000..70ce618
--- /dev/null
+++ b/users/fcuny/blog/static/css/custom.css
@@ -0,0 +1,201 @@
+body {
+  font-family: sans-serif;
+  font-size: 1em;
+  line-height: 1.8em;
+  color: #0e0e0b;
+  margin: 1em auto;
+  padding: 0 0.55em;
+  max-width: 50rem;
+}
+
+h1 {
+  color: #0e0e0b;
+  font-size: 2rem;
+  margin-top: 1em;
+  margin-bottom: 0.34em;
+}
+
+h2, h3 {
+  border-bottom: 1px solid #eee;
+  font-style: italic;
+}
+h2 {
+  margin-top: 1.25em;
+  margin-bottom: 0.41em;
+  font-size: 1.4rem;
+}
+h3 {
+  margin-top: 1.5em;
+  margin-bottom: 0.5em;
+  font-size: 1.2rem;
+}
+
+hr{
+  color:#000111;
+  background-color:#000111;
+  border:none;
+  height:1px
+}
+
+a {
+  color:#047bc2;
+  transition:color .1s ease-in-out;
+}
+
+a:link,
+a:hover,
+a:focus,
+a:active {
+  color:#047bc2;
+  text-decoration: underline;
+  text-underline-offset:.2rem
+}
+
+span.published, span.updated {
+  display: center;
+  font-style: oblique;
+}
+
+code {
+  font-family: monospace;
+  padding-left: 0.2em;
+  padding-right: 0.2em;
+  border-radius: 4px;
+}
+
+p code {
+  color: black;
+  background-color: #eee;
+  padding: 0 0.2rem;
+  font-size: 1.1em;
+}
+
+pre {
+  font-family: monospace;
+  font-size: 1.1em;
+  margin: 0;
+  word-wrap: normal;
+  padding: 0.8em;
+  overflow-x: auto;
+  border: 1px solid #eee;
+  border-radius: 3px;
+  background-color: #fafafa;
+}
+
+#meta {
+  display: row;
+}
+
+#meta_tags {
+  border-radius: 8px;
+  padding: 0 .5rem;
+  font-size: 0.9rem;
+  border: 2px solid #eee;
+  background-color: #eee;
+}
+
+#meta_tags a {
+  text-decoration: none;
+  border-bottom: none;
+  color: #005a9c;
+}
+
+#meta_date {
+  font-style: italic;
+  font-size: 0.9rem;
+}
+
+table {
+  width: 100%;
+  border-spacing: 0px;
+  outline: none;
+}
+
+td{
+  padding-right: 0.7em;
+  padding-top: 0.4em;
+  padding-bottom: 0.4em;
+}
+thead {
+    color: #000;
+    font-style: bold;
+    text-align: left;
+}
+table, th, td {
+    font-family: monospace;
+    color: #000;
+}
+
+blockquote {
+  font-size: 0.95rem;
+  font-style: italic;
+  margin: 0 0 1.5em;
+  padding-left: 1em;
+  border-left: .2em solid #bdbdbd
+}
+
+nav {
+  padding-right: 10px;
+  font-size: 1.4em;
+  display: flex;
+  font-family: monospace;
+  justify-content: space-between;
+  align-items: center;
+  padding-top: 0.5rem;
+}
+
+.nav-links {
+  list-style: none;
+  display: flex;
+}
+
+.navbar a {
+  display: inline-block;
+  text-decoration: none;
+}
+
+.navbar a:hover {
+  background-color: #b72d2d;
+  color: #fafafa;
+  text-decoration: none;
+}
+
+.nav-bold {
+  font-weight: 700;
+  color: #b72d2d;
+  text-decoration: none;
+}
+
+article {
+  text-align: justify;
+}
+
+.post-permalink {
+  list-style: none;
+  margin-left: -20px;
+}
+
+.post-date {
+  font-family: monospace;
+  font-weight: 400;
+  font-size: 1.1em;
+}
+
+footer {
+  border-top: 2px solid #eee;
+  margin-top: 2em;
+  display: flex;
+  flex-direction: row;
+  justify-content: left;
+  align-items: left;
+}
+
+footer a, footer a:link, footer a:focus, footer a:active, footer a:hover {
+  color: black;
+  text-decoration: none;
+  padding: 5px;
+}
+
+footer a:not(:first-child) {
+  margin-left: 15px;
+}
diff --git a/users/fcuny/blog/static/humans.txt b/users/fcuny/blog/static/humans.txt
new file mode 100644
index 0000000..d2c9d47
--- /dev/null
+++ b/users/fcuny/blog/static/humans.txt
@@ -0,0 +1,10 @@
+/* TEAM */
+Author: Franck Cuny
+Contact: franck [at] fcuny.net
+Twitter: @franckcuny
+Location: Berkeley, CA
+
+/* SITE */
+CA: Let's Encrypt
+Host: Fly.io
+Serving: Linux, Go
diff --git a/users/fcuny/blog/static/profile.jpg b/users/fcuny/blog/static/profile.jpg
new file mode 100644
index 0000000..5417f13
--- /dev/null
+++ b/users/fcuny/blog/static/profile.jpg
Binary files differdiff --git a/users/fcuny/blog/static/resume.html b/users/fcuny/blog/static/resume.html
new file mode 100644
index 0000000..0f1cd83
--- /dev/null
+++ b/users/fcuny/blog/static/resume.html
@@ -0,0 +1,209 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml" lang xml:lang>
+<head>
+  <meta charset="utf-8" />
+  <meta name="generator" content="pandoc" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes" />
+  <meta name="author" content="franck@fcuny.net" />
+  <title>Franck Cuny</title>
+  <style>
+    code{white-space: pre-wrap;}
+    span.smallcaps{font-variant: small-caps;}
+    span.underline{text-decoration: underline;}
+    div.column{display: inline-block; vertical-align: top; width: 50%;}
+    div.hanging-indent{margin-left: 1.5em; text-indent: -1.5em;}
+    ul.task-list{list-style: none;}
+    .display.math{display: block; text-align: center; margin: 0.5rem auto;}
+  </style>
+  <style type="text/css">body {
+font-family: sans-serif;
+font-size: 1em;
+line-height: 1.8em;
+color: #0e0e0b;
+margin: 1em auto;
+padding: 0 0.55em;
+max-width: 50rem;
+}
+h1 {
+color: #0e0e0b;
+font-size: 1.3rem;
+}
+h2, h3 {
+border-bottom: 1px solid #eee;
+font-style: italic;
+}
+h2 {
+margin-top: 1.25em;
+margin-bottom: 0.41em;
+font-size: 1.2rem;
+}
+h3 {
+margin-top: 1.5em;
+margin-bottom: 0.5em;
+font-size: 1rem;
+}
+hr{
+color:#000111;
+background-color:#000111;
+border:none;
+height:1px
+}
+a {
+color:#047bc2;
+transition:color .1s ease-in-out;
+}
+table {
+width: 100%;
+border-spacing: 0px;
+outline: none;
+}
+td{
+padding-right: 0.7em;
+}
+td:last-child {
+text-align: right;
+}
+table, th, td {
+font-family: monospace;
+color: #000;
+}
+#title-block-header {
+padding-right: 10px;
+font-size: 1.4em;
+display: flex;
+font-family: monospace;
+justify-content: space-between;
+align-items: center;
+padding-top: 0.5rem;
+border-bottom: 1px;
+}
+#experience {
+padding-top: 20px;
+}
+</style>
+  <!--[if lt IE 9]>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv-printshiv.min.js"></script>
+  <![endif]-->
+</head>
+<body>
+<header id="title-block-header">
+<h1 class="title">Franck Cuny</h1>
+<p class="author"><a href="mailto:franck@fcuny.net">franck@fcuny.net</a></p>
+</header>
+<p>I&#39;m a seasoned Site Reliability Engineer with experience in large
+scale distributed systems. I&#39;m invested in mentoring junior and senior
+engineers to help them increase their impact. I&#39;m always looking to
+learn from those around me.</p>
+<p><strong>Specializations</strong>: distributed systems,
+containerization, debugging, software development, reliability.</p>
+<h1 id="experience">Experience</h1>
+<h2 id="roblox-san-mateo">Roblox, San Mateo</h2>
+<table>
+<tbody>
+<tr class="odd">
+<td>Site Reliability Engineer</td>
+<td>Principal (IC6)</td>
+<td>SRE Group</td>
+<td>Feb 2022 - to date</td>
+</tr>
+</tbody>
+</table>
+<p>I&#39;m the Team Lead for the Site Reliability group that was started at
+the end of 2021.</p>
+<p>I&#39;m defining the road-map and identify areas where SREs can partner
+with different team to improve overall reliability of our services.</p>
+<h2 id="twitter-san-francisco">Twitter, San Francisco</h2>
+<h3 id="compute">Compute</h3>
+<table>
+<tbody>
+<tr class="odd">
+<td>Software Engineer</td>
+<td>Senior Staff</td>
+<td>Compute Info</td>
+<td>Aug 2021 - Jan 2022</td>
+</tr>
+<tr class="even">
+<td>Site Reliability Engineer</td>
+<td>Senior Staff</td>
+<td>Compute SREs</td>
+<td>Jan 2018 - Aug 2021</td>
+</tr>
+</tbody>
+</table>
+<p>Initially the Tech Lead of a team of 6 SREs supporting the Compute
+infrastructure. In August 2021 I changed to be a Software Engineer and
+was leading one of the effort to adopt Kubernetes for our on-premise
+infrastructure. As a Tech Lead I helped define number of internal
+processes for the team, from on-call rotations to postmortem
+processes.</p>
+<p>Twitter&#39;s Compute is one of the largest Mesos cluster in the world
+(XXX thousands of nodes across multiple data centers). The team defined
+KPIs, improved automation to mange the large fleet of bare metal
+machines, defined APIs for maintenance with partner teams.</p>
+<p>In addition to supporting Aurora/Mesos, I also lead a number of
+effort related to Kubernetes, both on-premise and in the cloud.</p>
+<p>Finally, I&#39;ve helped Twitter save XX of millions of dollar in
+hardware by designing and implementing strategies to significantly
+improve the hardware utilization of our bare metal infrastructure.</p>
+<h3 id="storage">Storage</h3>
+<table>
+<tbody>
+<tr class="odd">
+<td>Site Reliability Engineer</td>
+<td>Staff</td>
+<td>Storage SREs</td>
+<td>Aug 2014 - Jan 2018</td>
+</tr>
+</tbody>
+</table>
+<p>For 4 years I supported the Messaging and Manhattan teams. I moved
+all the pub-sub systems from bare-metal deployment to Aurora/Mesos,
+being the first storage team to adopt the Compute orchestration
+platform. This helped reducing operations, time to deploy, and improve
+overall reliability. I pushed for adopting 10Gb+ networking in our data
+center to help our team to scale. I was the SRE Tech Lead for the
+Manhattan team, helping with performance, operation and automation.</p>
+<h2 id="senior-software-engineer---say-media-san-francisco">Senior
+Software Engineer - Say Media, San Francisco</h2>
+<table>
+<tbody>
+<tr class="odd">
+<td>Software Engineer</td>
+<td>Senior SWE</td>
+<td>Infrastructure</td>
+<td>Aug 2011 - Aug 2014</td>
+</tr>
+</tbody>
+</table>
+<p>During my time at Say Media, I worked on two different teams. I
+started as a software engineer in the platform team building the various
+APIs; I then transitioned to the operation team, to develop tooling to
+increase the effectiveness of the engineering organization.</p>
+<h2 id="senior-software-engineer---linkfluence-paris">Senior Software
+Engineer - Linkfluence, Paris</h2>
+<table>
+<tbody>
+<tr class="odd">
+<td>Software Engineer</td>
+<td>Senior SWE</td>
+<td>Infrastructure</td>
+<td>July 2007 - July 2011</td>
+</tr>
+</tbody>
+</table>
+<p>I was one of the early engineers joining Linkfluence in 2007. I led
+the development of the company&#39;s crawler (web, feeds). I was responsible
+for defining the early architecture of the company, and designed the
+internal platforms (Service Oriented Architecture). I helped the company
+to contribute to open source projects; contributed to open source
+projects on behalf of the company; represented the company at numerous
+open sources conferences in Europe.</p>
+<h1 id="technical-skills">Technical Skills</h1>
+<ul>
+<li><strong>Languages</strong> Python, Go, Ruby, Perl</li>
+<li><strong>Frameworks</strong> Kubernetes, Aurora, Mesos</li>
+<li><strong>Databases</strong> RDBMS, NOSql</li>
+<li><strong>Dev tools</strong> Git</li>
+</ul>
+</body>
+</html>
diff --git a/users/fcuny/blog/static/resume.pdf b/users/fcuny/blog/static/resume.pdf
new file mode 100644
index 0000000..123b9ef
--- /dev/null
+++ b/users/fcuny/blog/static/resume.pdf
Binary files differdiff --git a/users/fcuny/blog/static/ssh.pub.sig b/users/fcuny/blog/static/ssh.pub.sig
new file mode 100644
index 0000000..88f4f3e
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+++ b/users/fcuny/blog/static/ssh.pub.sig
@@ -0,0 +1,2 @@
+ssh-rsa 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 franck@fcuny.net
+ssh-rsa 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 franck@fcuny.net
diff --git a/users/fcuny/notes/Dockerfile b/users/fcuny/notes/Dockerfile
new file mode 100644
index 0000000..64c0f97
--- /dev/null
+++ b/users/fcuny/notes/Dockerfile
@@ -0,0 +1,7 @@
+FROM klakegg/hugo:0.91.2-ext-alpine-onbuild AS hugo
+
+FROM pierrezemb/gostatic
+
+COPY --from=hugo /target /srv/http/
+
+CMD ["-port", "8080" , "-https-promote"]
diff --git a/users/fcuny/notes/archetypes/default.md b/users/fcuny/notes/archetypes/default.md
new file mode 100644
index 0000000..7ce2f1a
--- /dev/null
+++ b/users/fcuny/notes/archetypes/default.md
@@ -0,0 +1,5 @@
+---
+title: "{{ replace .Name "-" " " | title }}"
+date: {{ .Date }}
+---
+
diff --git a/users/fcuny/notes/config.toml b/users/fcuny/notes/config.toml
new file mode 100644
index 0000000..4f335a9
--- /dev/null
+++ b/users/fcuny/notes/config.toml
@@ -0,0 +1,41 @@
+baseURL = "https://notes.fcuny.net/"
+languageCode = "en-us"
+title = "Franck's notes"
+publishDir = "docs"
+enableGitInfo = true
+
+[params]
+  homeText = "A collection of notes"
+  mainSections = ['notes']
+
+[author]
+  name = "Franck Cuny"
+  email = "franck@fcuny.net"
+
+[taxonomies]
+  tag = "tags"
+
+[permalinks]
+  notes = "/notes/:slug/"
+  tags = "/tags/:slug/"
+
+[markup]
+  [markup.tableOfContents]
+    startLevel = 1
+    endLevel = 3
+    ordered = true
+  [markup.highlight]
+    anchorLineNos = false
+    codeFences = false
+    guessSyntax = false
+    hl_Lines = ""
+    lineAnchors = ""
+    lineNoStart = 1
+    lineNos = false
+    lineNumbersInTable = false
+    noClasses = true
+    style = "emacs"
+    tabWidth = 4
+
+[outputs]
+  home = [ "HTML" ]
diff --git a/users/fcuny/notes/content/notes/containerd-to-firecracker.org b/users/fcuny/notes/content/notes/containerd-to-firecracker.org
new file mode 100644
index 0000000..554771d
--- /dev/null
+++ b/users/fcuny/notes/content/notes/containerd-to-firecracker.org
@@ -0,0 +1,568 @@
+#+TITLE: containerd to firecracker
+#+DATE: <2021-05-15 Sat>
+#+TAGS[]: linux firecracker containerd go
+#+toc: t
+
+fly.io had an [[https://fly.io/blog/docker-without-docker/][interesting article]] about how they use docker images to create VMs for =firecracker=.
+
+They describe the process as follow:
+
+1. Pull a container from a registry
+2. Create a loop device to store the container's filesystem on
+3. Unpack the container into the mounted loop device
+4. Create a second block device and inject init, kernel, configuration and other stuff
+5. Attach persistent volumes (if any)
+6. Create a TAP device and configure it
+7. Hand it off to Firecracker and boot that thing
+
+That's pretty detailed, and I'm curious how difficult it is to implement this. I've been meaning to look into Firecracker for a while and into containers'd API, so this is a perfect opportunity to get started. The code is available [[https://git.fcuny.net/fcuny/containerd-to-vm][here]].
+
+* #1 Pull a container from a registry with =containerd=
+=containerd= has a pretty [[https://pkg.go.dev/github.com/containerd/containerd][detailed documentation]]. From the main page we can see the following example to create a client.
+#+begin_src go
+import (
+  "github.com/containerd/containerd"
+  "github.com/containerd/containerd/cio"
+)
+
+
+func main() {
+	client, err := containerd.New("/run/containerd/containerd.sock")
+	defer client.Close()
+}
+#+end_src
+
+And pulling an image is also pretty straightforward:
+#+begin_src go
+image, err := client.Pull(context, "docker.io/library/redis:latest")
+#+end_src
+
+The =Pull= method returns an [[https://pkg.go.dev/github.com/containerd/containerd@v1.4.4/images#Image][=Image=]] and there's a few methods associated with it.
+
+As =containerd= has namespaces, it's possible to specify the namespace we want to use when working with the API:
+#+begin_src go
+ctx := namespaces.WithNamespace(context.Background(), "c2vm")
+image, err := client.Pull(ctx, "docker.io/library/redis:latest")
+#+end_src
+
+The image will now be stored in the =c2vm= namespace. We can verify this with:
+#+begin_src sh
+; sudo ctr -n c2vm images ls -q
+docker.io/library/redis:latest
+#+end_src
+
+* #2 Create a loop device to store the container's filesystem on
+This is going to be pretty straightforward. To create a loop device we need to:
+1. pre-allocate space to a file
+2. convert that file to some format
+3. mount it to some destination
+
+There's two commons ways to pre-allocate space to a file: =dd= and =fallocate= (there's likely way more ways to do this). I'll go with =fallocate= for this example.
+
+First, to be safe, we create a temporary file, and use =renameio= to handle the renaming (I recommend reading the doc of the module).
+
+#+begin_src go
+f, err := renameio.TempFile("", rawFile)
+if err != nil {
+	return err
+}
+defer f.Cleanup()
+#+end_src
+
+Now to do the pre-allocation (we're making an assumption here that 2GB is enough, we can likely check what's the size of the container before doing this):
+#+begin_src go
+command := exec.Command("fallocate", "-l", "2G", f.Name())
+if err := command.Run(); err != nil {
+	return fmt.Errorf("fallocate error: %s", err)
+}
+#+end_src
+
+We can now convert that file to ext4:
+#+begin_src go
+command = exec.Command("mkfs.ext4", "-F", f.Name())
+if err := command.Run(); err != nil {
+	return fmt.Errorf("mkfs.ext4 error: %s", err)
+}
+#+end_src
+
+Now we can rename safely the temporary file to the proper file we want:
+#+begin_src go
+f.CloseAtomicallyReplace()
+#+end_src
+
+And to mount that file
+#+begin_src go
+command = exec.Command("mount", "-o", "loop", rawFile, mntDir)
+if err := command.Run(); err != nil {
+	return fmt.Errorf("mount error: %s", err)
+}
+#+end_src
+* #3 Unpack the container into the mounted loop device
+Extracting the container using =containerd= is pretty simple. Here's the function that I use:
+#+begin_src go
+func extract(ctx context.Context, client *containerd.Client, image containerd.Image, mntDir string) error {
+	manifest, err := images.Manifest(ctx, client.ContentStore(), image.Target(), platform)
+	if err != nil {
+		log.Fatalf("failed to get the manifest: %v\n", err)
+	}
+
+	for _, desc := range manifest.Layers {
+		log.Printf("extracting layer %s\n", desc.Digest.String())
+		layer, err := client.ContentStore().ReaderAt(ctx, desc)
+		if err != nil {
+			return err
+		}
+		if err := archive.Untar(content.NewReader(layer), mntDir, &archive.TarOptions{NoLchown: true}); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+#+end_src
+
+Calling =images.Manifest= returns the [[https://github.com/opencontainers/image-spec/blob/master/manifest.md][manifest]] from the image. What we care here are the list of layers. Here I'm making a number of assumptions regarding their type (we should be checking the media type first). We read the layers and extract them to the mounted path.
+* #4 Create a second block device and inject other stuff
+Here I'm going to deviate a bit. I will not create a second loop device, and I will not inject a kernel. In their article, they provided a link to a snapshot of their =init= process (https://github.com/superfly/init-snapshot). In order to keep this simple, our init is going to be a shell script composed of the content of the entry point of the container. We're also going to add a few extra files to container (=/etc/hosts= and =/etc/resolv.conf=).
+
+Finally, since we've pre-allocated 2GB for that container, and we likely don't need that much, we're also going to resize the image.
+** Add init
+Let's refer to the [[https://github.com/opencontainers/image-spec/blob/master/config.md][specification for the config]]. The elements that are of interest to me are:
+- =Env=, which is array of strings. They contain the environment variables that likely we need to run the program
+- =Cmd=, which is also an array of strings. If there's no entry point provided, this is what is used.
+
+At this point, for this experiment, I'm going to ignore exposed ports, working directory, and the user.
+
+First we need to read the config from the container. This is easily done:
+#+begin_src go
+config, err := images.Config(ctx, client.ContentStore(), image.Target(), platform)
+if err != nil {
+	return err
+}
+#+end_src
+
+This needs to be read and decoded:
+#+begin_src go
+configBlob, err := content.ReadBlob(ctx, client.ContentStore(), config)
+var imageSpec ocispec.Image
+json.Unmarshal(configBlob, &imageSpec)
+#+end_src
+
+=init= is the first process started by Linux during boot. On a regular Linux desktop you likely have a symbolic link from =/usr/bin/init= to =/usr/lib/systemd/systemd=, since most distributions have switched to =systemd=. For my use case however, I want to run a single process, and I want it to be the one from the container. For this we can create a simple shell script inside the container (the location does not matter for now) with the environment variables and the command.
+
+Naively, this can be done like this:
+#+begin_src go
+initPath := filepath.Join(mntDir, "init.sh")
+f, err := renameio.TempFile("", initPath)
+if err != nil {
+	return err
+}
+defer f.Cleanup()
+
+writer := bufio.NewWriter(f)
+fmt.Fprintf(writer, "#!/bin/sh\n")
+for _, env := range initEnvs {
+	fmt.Fprintf(writer, "export %s\n", env)
+}
+fmt.Fprintf(writer, "%s\n", initCmd)
+writer.Flush()
+
+f.CloseAtomicallyReplace()
+
+mode := int(0755)
+os.Chmod(initPath, os.FileMode(mode))
+#+end_src
+
+We're once again creating a  temporary file with =renamio=, and we're writing our shell scripts, one line at a time. We only need to make sure this executable.
+** extra files
+Once we have our init file, I also want to add a few extra files: =/etc/hosts= and =/etc/resolv.conf=. This files are not always present, since they can be injected by other systems. I also want to make sure that DNS resolutions are done using my own DNS server.
+** resize the image
+We've pre-allocated 2GB for the image, and it's likely we don't need as much space. We can do this by running =e2fsck= and =resize2fs= once we're done manipulating the image.
+
+Within a function, we can do the following:
+#+begin_src go
+command := exec.Command("/usr/bin/e2fsck", "-p", "-f", rawFile)
+if err := command.Run(); err != nil {
+	return fmt.Errorf("e2fsck error: %s", err)
+}
+
+command = exec.Command("resize2fs", "-M", rawFile)
+if err := command.Run(); err != nil {
+	return fmt.Errorf("resize2fs error: %s", err)
+}
+#+end_src
+
+I'm using =docker.io/library/redis:latest= for my test, and I end up with the following size for the image:
+#+begin_src bash
+-rw------- 1 root root 216M Apr 22 14:50 /tmp/fcuny.img
+#+end_src
+** Kernel
+We're going to need a kernel to run that VM. In my case I've decided to go with version 5.8, and build a custom kernel. If you are not familiar with the process, the firecracker team has [[https://github.com/firecracker-microvm/firecracker/blob/main/docs/rootfs-and-kernel-setup.md#creating-a-kernel-image][documented how to do this]]. In my case all I had to do was:
+#+begin_src sh
+git clone https://github.com/torvalds/linux.git linux.git
+cd linux.git
+git checkout v5.8
+curl -o .config -s https://github.com/firecracker-microvm/firecracker/blob/main/resources/microvm-kernel-x86_64.config
+make menuconfig
+make vmlinux -j8
+#+end_src
+
+Note that they also have a pretty [[https://github.com/firecracker-microvm/firecracker/blob/main/docs/prod-host-setup.md][good documentation for production]].
+* #5 Attach persistent volumes (if any)
+I'm going to skip that step for now.
+* #6 Create a TAP device and configure it
+We're going to need a network for that VM (otherwise it might be a bit boring).
+There's a few solutions that we can take:
+1. create the TAP device
+2. delegate all that work to a [[https://github.com/containernetworking/cni][CNI]]
+
+I've decided to use the CNI approach [[https://github.com/firecracker-microvm/firecracker-go-sdk#cni][documented in the Go's SDK]]. For this to work we need to install the =tc-redirect-tap= CNI plugin (available at https://github.com/awslabs/tc-redirect-tap).
+
+Based on that documentation, I'll start with the following configuration in =etc/cni/conf.d/50-c2vm.conflist=:
+#+begin_src json
+{
+  "name": "c2vm",
+  "cniVersion": "0.4.0",
+  "plugins": [
+    {
+      "type": "bridge",
+      "bridge": "c2vm-br",
+      "isDefaultGateway": true,
+      "forceAddress": false,
+      "ipMasq": true,
+      "hairpinMode": true,
+      "mtu": 1500,
+      "ipam": {
+        "type": "host-local",
+        "subnet": "192.168.128.0/24",
+        "resolvConf": "/etc/resolv.conf"
+      }
+    },
+    {
+      "type": "firewall"
+    },
+    {
+      "type": "tc-redirect-tap"
+    }
+  ]
+}
+#+end_src
+* #7 Hand it off to Firecracker and boot that thing
+Now that we have all the components, we need to boot that VM. Since I've been working with Go so far, I'll also use the [[https://github.com/firecracker-microvm/firecracker-go-sdk][Go SDK]] to manage and start the VM.
+
+For this we need the firecracker binary, which we can [[https://github.com/firecracker-microvm/firecracker/releases][find on GitHub]].
+
+The first thing is to configure the list of devices. In our case we will have a single device, the boot drive that we've created in the previous step.
+#+begin_src go
+devices := make([]models.Drive, 1)
+devices[0] = models.Drive{
+	DriveID:      firecracker.String("1"),
+	PathOnHost:   &rawImage,
+	IsRootDevice: firecracker.Bool(true),
+	IsReadOnly:   firecracker.Bool(false),
+}
+#+end_src
+
+The next step is to configure the VM:
+#+begin_src go
+fcCfg := firecracker.Config{
+	LogLevel:        "debug",
+	SocketPath:      firecrackerSock,
+	KernelImagePath: linuxKernel,
+	KernelArgs:      "console=ttyS0 reboot=k panic=1 acpi=off pci=off i8042.noaux i8042.nomux i8042.nopnp i8042.dumbkbd init=/init.sh random.trust_cpu=on",
+	Drives:          devices,
+	MachineCfg: models.MachineConfiguration{
+		VcpuCount:   firecracker.Int64(1),
+		CPUTemplate: models.CPUTemplate("C3"),
+		HtEnabled:   firecracker.Bool(true),
+		MemSizeMib:  firecracker.Int64(512),
+	},
+	NetworkInterfaces: []firecracker.NetworkInterface{
+		{
+			CNIConfiguration: &firecracker.CNIConfiguration{
+				NetworkName: "c2vm",
+				IfName:      "eth0",
+			},
+		},
+	},
+}
+#+end_src
+
+Finally we can create the command to start and run the VM:
+#+begin_src go
+command := firecracker.VMCommandBuilder{}.
+	WithBin(firecrackerBinary).
+	WithSocketPath(fcCfg.SocketPath).
+	WithStdin(os.Stdin).
+	WithStdout(os.Stdout).
+	WithStderr(os.Stderr).
+	Build(ctx)
+machineOpts = append(machineOpts, firecracker.WithProcessRunner(command))
+m, err := firecracker.NewMachine(vmmCtx, fcCfg, machineOpts...)
+if err != nil {
+	panic(err)
+}
+
+if err := m.Start(vmmCtx); err != nil {
+	panic(err)
+}
+defer m.StopVMM()
+
+if err := m.Wait(vmmCtx); err != nil {
+	panic(err)
+}
+#+end_src
+
+The end result:
+#+begin_src
+; sudo ./c2vm -container docker.io/library/redis:latest -firecracker-binary ./hack/firecracker/firecracker-v0.24.3-x86_64 -linux-kernel ./hack/linux/my-linux.bin -out /tmp/redis.img
+2021/05/15 14:12:59 pulled docker.io/library/redis:latest (38690247 bytes)
+2021/05/15 14:13:00 mounted /tmp/redis.img on /tmp/c2vm026771514
+2021/05/15 14:13:00 extracting layer sha256:69692152171afee1fd341febc390747cfca2ff302f2881d8b394e786af605696
+2021/05/15 14:13:00 extracting layer sha256:a4a46f2fd7e06fab84b4e78eb2d1b6d007351017f9b18dbeeef1a9e7cf194e00
+2021/05/15 14:13:00 extracting layer sha256:bcdf6fddc3bdaab696860eb0f4846895c53a3192c9d7bf8d2275770ea8073532
+2021/05/15 14:13:01 extracting layer sha256:b7e9b50900cc06838c44e0fc5cbebe5c0b3e7f70c02f32dd754e1aa6326ed566
+2021/05/15 14:13:01 extracting layer sha256:5f3030c50d85a9d2f70adb610b19b63290c6227c825639b227ddc586f86d1c76
+2021/05/15 14:13:01 extracting layer sha256:63dae8e0776cdbd63909fbd9c047c1615a01cb21b73efa87ae2feed680d3ffa1
+2021/05/15 14:13:01 init script created
+2021/05/15 14:13:01 umount /tmp/c2vm026771514
+INFO[0003] Called startVMM(), setting up a VMM on firecracker.sock
+INFO[0003] VMM logging disabled.
+INFO[0003] VMM metrics disabled.
+INFO[0003] refreshMachineConfiguration: [GET /machine-config][200] getMachineConfigurationOK  &{CPUTemplate:C3 HtEnabled:0xc0004e6753 MemSizeMib:0xc0004e6748 VcpuCount:0xc0004e6740}
+INFO[0003] PutGuestBootSource: [PUT /boot-source][204] putGuestBootSourceNoContent
+INFO[0003] Attaching drive /tmp/redis.img, slot 1, root true.
+INFO[0003] Attached drive /tmp/redis.img: [PUT /drives/{drive_id}][204] putGuestDriveByIdNoContent
+INFO[0003] Attaching NIC tap0 (hwaddr 9e:72:c7:04:6b:80) at index 1
+INFO[0003] startInstance successful: [PUT /actions][204] createSyncActionNoContent
+[    0.000000] Linux version 5.8.0 (fcuny@nas) (gcc (Debian 8.3.0-6) 8.3.0, GNU ld (GNU Binutils for Debian) 2.31.1) #1 SMP Mon Apr 12 20:07:40 PDT 2021
+[    0.000000] Command line: i8042.dumbkbd ip=192.168.128.9::192.168.128.1:255.255.255.0:::off::: console=ttyS0 reboot=k panic=1 acpi=off pci=off i8042.noaux i8042.nomux i8042.nopnp init=/init.sh random.trust_cpu=on root=/dev/vda rw virtio_mmio.device=4K@0xd0000000:5 virtio_mmio.device=4K@0xd0001000:6
+[    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
+[    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
+[    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
+[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
+[    0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
+[    0.000000] BIOS-provided physical RAM map:
+[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
+[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001fffffff] usable
+[    0.000000] NX (Execute Disable) protection: active
+[    0.000000] DMI not present or invalid.
+[    0.000000] Hypervisor detected: KVM
+[    0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
+[    0.000000] kvm-clock: cpu 0, msr 2401001, primary cpu clock
+[    0.000000] kvm-clock: using sched offset of 11918596 cycles
+[    0.000005] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
+[    0.000011] tsc: Detected 1190.400 MHz processor
+[    0.000108] last_pfn = 0x20000 max_arch_pfn = 0x400000000
+[    0.000151] Disabled
+[    0.000156] x86/PAT: MTRRs disabled, skipping PAT initialization too.
+[    0.000166] CPU MTRRs all blank - virtualized system.
+[    0.000170] x86/PAT: Configuration [0-7]: WB  WT  UC- UC  WB  WT  UC- UC
+[    0.000201] found SMP MP-table at [mem 0x0009fc00-0x0009fc0f]
+[    0.000257] check: Scanning 1 areas for low memory corruption
+[    0.000364] No NUMA configuration found
+[    0.000365] Faking a node at [mem 0x0000000000000000-0x000000001fffffff]
+[    0.000370] NODE_DATA(0) allocated [mem 0x1ffde000-0x1fffffff]
+[    0.000490] Zone ranges:
+[    0.000493]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
+[    0.000494]   DMA32    [mem 0x0000000001000000-0x000000001fffffff]
+[    0.000495]   Normal   empty
+[    0.000497] Movable zone start for each node
+[    0.000500] Early memory node ranges
+[    0.000501]   node   0: [mem 0x0000000000001000-0x000000000009efff]
+[    0.000502]   node   0: [mem 0x0000000000100000-0x000000001fffffff]
+[    0.000510] Zeroed struct page in unavailable ranges: 98 pages
+[    0.000511] Initmem setup node 0 [mem 0x0000000000001000-0x000000001fffffff]
+[    0.004990] Intel MultiProcessor Specification v1.4
+[    0.004995] MPTABLE: OEM ID: FC
+[    0.004995] MPTABLE: Product ID: 000000000000
+[    0.004996] MPTABLE: APIC at: 0xFEE00000
+[    0.005007] Processor #0 (Bootup-CPU)
+[    0.005039] IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
+[    0.005041] Processors: 1
+[    0.005042] TSC deadline timer available
+[    0.005044] smpboot: Allowing 1 CPUs, 0 hotplug CPUs
+[    0.005060] KVM setup pv remote TLB flush
+[    0.005072] KVM setup pv sched yield
+[    0.005078] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
+[    0.005079] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff]
+[    0.005081] [mem 0x20000000-0xffffffff] available for PCI devices
+[    0.005082] Booting paravirtualized kernel on KVM
+[    0.005084] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
+[    0.005087] setup_percpu: NR_CPUS:128 nr_cpumask_bits:128 nr_cpu_ids:1 nr_node_ids:1
+[    0.006381] percpu: Embedded 44 pages/cpu s143360 r8192 d28672 u2097152
+[    0.006404] KVM setup async PF for cpu 0
+[    0.006410] kvm-stealtime: cpu 0, msr 1f422080
+[    0.006420] Built 1 zonelists, mobility grouping on.  Total pages: 128905
+[    0.006420] Policy zone: DMA32
+[    0.006422] Kernel command line: i8042.dumbkbd ip=192.168.128.9::192.168.128.1:255.255.255.0:::off::: console=ttyS0 reboot=k panic=1 acpi=off pci=off i8042.noaux i8042.nomux i8042.nopnp init=/init.sh random.trust_cpu=on root=/dev/vda rw virtio_mmio.device=4K@0xd0000000:5 virtio_mmio.device=4K@0xd0001000:6
+[    0.006858] Dentry cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
+[    0.007003] Inode-cache hash table entries: 32768 (order: 6, 262144 bytes, linear)
+[    0.007047] mem auto-init: stack:off, heap alloc:off, heap free:off
+[    0.007947] Memory: 491940K/523896K available (10243K kernel code, 629K rwdata, 1860K rodata, 1408K init, 6048K bss, 31956K reserved, 0K cma-reserved)
+[    0.007980] random: get_random_u64 called from __kmem_cache_create+0x3d/0x540 with crng_init=0
+[    0.008053] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
+[    0.008146] rcu: Hierarchical RCU implementation.
+[    0.008147] rcu:     RCU restricting CPUs from NR_CPUS=128 to nr_cpu_ids=1.
+[    0.008151] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
+[    0.008152] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
+[    0.008170] NR_IRQS: 4352, nr_irqs: 48, preallocated irqs: 16
+[    0.008373] random: crng done (trusting CPU's manufacturer)
+[    0.008430] Console: colour dummy device 80x25
+[    0.052276] printk: console [ttyS0] enabled
+[    0.052685] APIC: Switch to symmetric I/O mode setup
+[    0.053288] x2apic enabled
+[    0.053705] Switched APIC routing to physical x2apic.
+[    0.054213] KVM setup pv IPIs
+[    0.055559] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1128af0325d, max_idle_ns: 440795261011 ns
+[    0.056516] Calibrating delay loop (skipped) preset value.. 2380.80 BogoMIPS (lpj=4761600)
+[    0.057259] pid_max: default: 32768 minimum: 301
+[    0.057726] LSM: Security Framework initializing
+[    0.058176] SELinux:  Initializing.
+[    0.058556] Mount-cache hash table entries: 1024 (order: 1, 8192 bytes, linear)
+[    0.059221] Mountpoint-cache hash table entries: 1024 (order: 1, 8192 bytes, linear)
+[    0.060382] x86/cpu: User Mode Instruction Prevention (UMIP) activated
+[    0.060510] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
+[    0.060510] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
+[    0.060510] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
+[    0.060510] Spectre V2 : Mitigation: Enhanced IBRS
+[    0.060510] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
+[    0.060510] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier
+[    0.060510] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp
+[    0.060510] Freeing SMP alternatives memory: 32K
+[    0.060510] smpboot: CPU0: Intel(R) Xeon(R) Processor @ 1.20GHz (family: 0x6, model: 0x3e, stepping: 0x4)
+[    0.060510] Performance Events: unsupported p6 CPU model 62 no PMU driver, software events only.
+[    0.060510] rcu: Hierarchical SRCU implementation.
+[    0.060510] smp: Bringing up secondary CPUs ...
+[    0.060510] smp: Brought up 1 node, 1 CPU
+[    0.060510] smpboot: Max logical packages: 1
+[    0.060523] smpboot: Total of 1 processors activated (2380.80 BogoMIPS)
+[    0.061338] devtmpfs: initialized
+[    0.061710] x86/mm: Memory block size: 128MB
+[    0.062341] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
+[    0.063245] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
+[    0.063946] thermal_sys: Registered thermal governor 'fair_share'
+[    0.063946] thermal_sys: Registered thermal governor 'step_wise'
+[    0.064522] thermal_sys: Registered thermal governor 'user_space'
+[    0.065313] NET: Registered protocol family 16
+[    0.066398] DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations
+[    0.067057] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
+[    0.067778] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
+[    0.068506] audit: initializing netlink subsys (disabled)
+[    0.068708] cpuidle: using governor ladder
+[    0.069097] cpuidle: using governor menu
+[    0.070636] audit: type=2000 audit(1621113181.800:1): state=initialized audit_enabled=0 res=1
+[    0.076346] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
+[    0.077007] ACPI: Interpreter disabled.
+[    0.077445] SCSI subsystem initialized
+[    0.077812] pps_core: LinuxPPS API ver. 1 registered
+[    0.078277] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
+[    0.079206] PTP clock support registered
+[    0.079741] NetLabel: Initializing
+[    0.080111] NetLabel:  domain hash size = 128
+[    0.080529] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
+[    0.081113] NetLabel:  unlabeled traffic allowed by default
+[    0.082072] clocksource: Switched to clocksource kvm-clock
+[    0.082715] VFS: Disk quotas dquot_6.6.0
+[    0.083123] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
+[    0.083855] pnp: PnP ACPI: disabled
+[    0.084510] NET: Registered protocol family 2
+[    0.084718] tcp_listen_portaddr_hash hash table entries: 256 (order: 0, 4096 bytes, linear)
+[    0.085602] TCP established hash table entries: 4096 (order: 3, 32768 bytes, linear)
+[    0.086365] TCP bind hash table entries: 4096 (order: 4, 65536 bytes, linear)
+[    0.087025] TCP: Hash tables configured (established 4096 bind 4096)
+[    0.087749] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
+[    0.088481] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
+[    0.089261] NET: Registered protocol family 1
+[    0.090395] virtio-mmio: Registering device virtio-mmio.0 at 0xd0000000-0xd0000fff, IRQ 5.
+[    0.091388] virtio-mmio: Registering device virtio-mmio.1 at 0xd0001000-0xd0001fff, IRQ 6.
+[    0.092222] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1128af0325d, max_idle_ns: 440795261011 ns
+[    0.093322] clocksource: Switched to clocksource tsc
+[    0.093824] platform rtc_cmos: registered platform RTC device (no PNP device found)
+[    0.094618] check: Scanning for low memory corruption every 60 seconds
+[    0.095394] Initialise system trusted keyrings
+[    0.095836] Key type blacklist registered
+[    0.096427] workingset: timestamp_bits=36 max_order=17 bucket_order=0
+[    0.097849] squashfs: version 4.0 (2009/01/31) Phillip Lougher
+[    0.107488] Key type asymmetric registered
+[    0.107905] Asymmetric key parser 'x509' registered
+[    0.108409] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
+[    0.109435] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
+[    0.110116] serial8250: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
+[    0.111877] loop: module loaded
+[    0.112426] virtio_blk virtio0: [vda] 441152 512-byte logical blocks (226 MB/215 MiB)
+[    0.113229] vda: detected capacity change from 0 to 225869824
+[    0.114143] Loading iSCSI transport class v2.0-870.
+[    0.114753] iscsi: registered transport (tcp)
+[    0.115162] tun: Universal TUN/TAP device driver, 1.6
+[    0.115955] i8042: PNP detection disabled
+[    0.116498] serio: i8042 KBD port at 0x60,0x64 irq 1
+[    0.117089] input: AT Raw Set 2 keyboard as /devices/platform/i8042/serio0/input/input0
+[    0.117932] intel_pstate: CPU model not supported
+[    0.118448] hid: raw HID events driver (C) Jiri Kosina
+[    0.119090] Initializing XFRM netlink socket
+[    0.119555] NET: Registered protocol family 10
+[    0.120285] Segment Routing with IPv6
+[    0.120812] NET: Registered protocol family 17
+[    0.121350] Bridge firewalling registered
+[    0.122026] NET: Registered protocol family 40
+[    0.122515] IPI shorthand broadcast: enabled
+[    0.122961] sched_clock: Marking stable (72512224, 48198862)->(137683636, -16972550)
+[    0.123796] registered taskstats version 1
+[    0.124203] Loading compiled-in X.509 certificates
+[    0.125355] Loaded X.509 cert 'Build time autogenerated kernel key: 6203e6adc37b712d3b220a26b38f3d31311d5966'
+[    0.126355] Key type ._fscrypt registered
+[    0.126736] Key type .fscrypt registered
+[    0.127109] Key type fscrypt-provisioning registered
+[    0.127657] Key type encrypted registered
+[    0.144629] IP-Config: Complete:
+[    0.144968]      device=eth0, hwaddr=9e:72:c7:04:6b:80, ipaddr=192.168.128.9, mask=255.255.255.0, gw=192.168.128.1
+[    0.146044]      host=192.168.128.9, domain=, nis-domain=(none)
+[    0.146604]      bootserver=255.255.255.255, rootserver=255.255.255.255, rootpath=
+[    0.148347] EXT4-fs (vda): mounted filesystem with ordered data mode. Opts: (null)
+[    0.149098] VFS: Mounted root (ext4 filesystem) on device 254:0.
+[    0.149761] devtmpfs: mounted
+[    0.150340] Freeing unused decrypted memory: 2040K
+[    0.151148] Freeing unused kernel image (initmem) memory: 1408K
+[    0.156621] Write protecting the kernel read-only data: 14336k
+[    0.158657] Freeing unused kernel image (text/rodata gap) memory: 2044K
+[    0.159490] Freeing unused kernel image (rodata/data gap) memory: 188K
+[    0.160150] Run /init.sh as init process
+462:C 15 May 2021 21:13:01.903 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
+462:C 15 May 2021 21:13:01.904 # Redis version=6.2.3, bits=64, commit=00000000, modified=0, pid=462, just started
+462:C 15 May 2021 21:13:01.905 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
+462:M 15 May 2021 21:13:01.907 * Increased maximum number of open files to 10032 (it was originally set to 1024).
+462:M 15 May 2021 21:13:01.909 * monotonic clock: POSIX clock_gettime
+                _._
+           _.-``__ ''-._
+      _.-``    `.  `_.  ''-._           Redis 6.2.3 (00000000/0) 64 bit
+  .-`` .-```.  ```\/    _.,_ ''-._
+ (    '      ,       .-`  | `,    )     Running in standalone mode
+ |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
+ |    `-._   `._    /     _.-'    |     PID: 462
+  `-._    `-._  `-./  _.-'    _.-'
+ |`-._`-._    `-.__.-'    _.-'_.-'|
+ |    `-._`-._        _.-'_.-'    |           https://redis.io
+  `-._    `-._`-.__.-'_.-'    _.-'
+ |`-._`-._    `-.__.-'    _.-'_.-'|
+ |    `-._`-._        _.-'_.-'    |
+  `-._    `-._`-.__.-'_.-'    _.-'
+      `-._    `-.__.-'    _.-'
+          `-._        _.-'
+              `-.__.-'
+
+462:M 15 May 2021 21:13:01.922 # Server initialized
+462:M 15 May 2021 21:13:01.923 * Ready to accept connections
+#+end_src
+
+We can do a quick test with the following:
+#+begin_src sh
+; sudo docker run -it --rm redis redis-cli -h 192.168.128.9
+192.168.128.9:6379> get foo
+(nil)
+192.168.128.9:6379> set foo 1
+OK
+192.168.128.9:6379> get foo
+"1"
+192.168.128.9:6379>
+#+end_src
diff --git a/users/fcuny/notes/content/notes/making-sense-intel-amd-cpus.org b/users/fcuny/notes/content/notes/making-sense-intel-amd-cpus.org
new file mode 100644
index 0000000..60b433f
--- /dev/null
+++ b/users/fcuny/notes/content/notes/making-sense-intel-amd-cpus.org
@@ -0,0 +1,131 @@
+#+TITLE: Making sense of Intel and AMD CPUs naming
+#+DATE: <2021-12-29 Wed>
+#+TAGS[]: amd intel cpu
+#+toc: headlines 1
+
+* Intel
+** Core
+The line up for the core family is i3, i5, i7 and i9. As of December 2021, the current generation is Alder Lake (12th generation).
+
+The brand modifiers are:
+- *i3*: laptops/low-end desktop
+- *i5*: mainstream users
+- *i7*: high-end users
+- *i9*: enthusiast users
+
+How to read a SKU ? Let's use the [[https://ark.intel.com/content/www/us/en/ark/products/134594/intel-core-i712700k-processor-25m-cache-up-to-5-00-ghz.html][i7-12700K]] processor:
+- *i7*: high end users
+- *12*: 12th generation
+- *700*: SKU digits, usually assigned in the order the processors are developed
+- *K*: unlocked
+
+List of suffixes:
+| suffix | meaning                                |
+|--------+----------------------------------------|
+| G..    | integrated graphics                    |
+| E      | embedded                               |
+| F      | require discrete graphic card          |
+| H      | high performance for mobile            |
+| HK     | high performance for mobile / unlocked |
+| K      | unlocked                               |
+| S      | special edition                        |
+| T      | power optimized lifestyle              |
+| U      | mobile power efficient                 |
+| Y      | mobile low power                       |
+| X/XE   | unlocked, high end                     |
+
+#+begin_quote
+*Unlocked,* what does that means ?
+A processor with the *K* suffix is made with the an unlocked clock multiplier. When used with some specific chipset, it's possible to overclock the processor.
+#+end_quote
+*** Sockets/Chipsets
+For the Alder Lake generation, the supported socket is the [[https://en.wikipedia.org/wiki/LGA_1700][LGA_1700]].
+
+For now only supported chipset for Alder Lake are:
+| feature                     | [[https://ark.intel.com/content/www/us/en/ark/products/218833/intel-z690-chipset.html][z690]]     | [[https://www.intel.com/content/www/us/en/products/sku/218831/intel-h670-chipset/specifications.html][h670]]     | [[https://ark.intel.com/content/www/us/en/ark/products/218832/intel-b660-chipset.html][b660]]    | [[https://www.intel.com/content/www/us/en/products/sku/218829/intel-h610-chipset/specifications.html][h610]] |
+|-----------------------------+----------+----------+---------+------|
+| P and E cores over clocking | yes      | no       | no      | no   |
+| memory over clocking        | yes      | yes      | yes     | no   |
+| DMI 4 lanes                 | 8        | 8        | 4       | 4    |
+| chipset PCIe 4.0 lanes      | up to 12 | up to 12 | up to 6 | none |
+| chipset PCIe 3.0 lanes      | up to 16 | up to 12 | up to 8 | 8    |
+| SATA 3.0 ports              | up to 8  | up to 8  | 4       | 4    |
+
+*** Alder Lake (12th generation)
+| model      | p-cores | e-cores | GHz (base) | GHz (boosted) | TDP  |
+|------------+---------+---------+------------+---------------+------|
+| i9-12900K  | 8 (16)  |       8 | 3.2/2.4    | 5.1/3.9       | 241W |
+| i9-12900KF | 8 (16)  |       8 | 3.2/2.4    | 5.1/3.9       | 241W |
+| i7-12700K  | 8 (16)  |       4 | 3.6/2.7    | 4.9/3.8       | 190W |
+| i7-12700KF | 8 (16)  |       4 | 3.6/2.7    | 4.9/3.8       | 190W |
+| i5-12600K  | 6 (12)  |       4 | 3.7/2.8    | 4.9/3.6       | 150W |
+| i5-12600KF | 6 (12)  |       4 | 3.7/2.8    | 4.9/3.6       | 150W |
+
+- support DDR4 and DDR5 (up to DDR5-4800)
+- support PCIe 4.0 and 5.0 (16 PCIe 5.0 and 4 PCIe 4.0)
+
+The socket used is the [[https://en.wikipedia.org/wiki/LGA_1700][LGA 1700]].
+
+Alder lake is an hybrid architecture, featuring both P-cores (performance cores) and E-cores (efficient cores). P-cores are based on the [[https://en.wikipedia.org/wiki/Golden_Cove][Golden Cove]] architecture, while the E-cores are based on the [[https://en.wikipedia.org/wiki/Gracemont_(microarchitecture)][Gracemont]] architecture.
+
+This is a [[https://www.anandtech.com/show/16881/a-deep-dive-into-intels-alder-lake-microarchitectures/2][good article]] to read about this model. Inside the processor there's a microcontroller that monitors what each thread is doing. This can be used by the OS scheduler to hint on which core a thread should be scheduled on (between performance or efficiency).
+
+As of December 2021 this is not yet properly supported by the Linux kernel.
+** Xeon
+Xeon is the brand of Intel processor designed for non-consumer servers and workstations.
+The most recent generations are:
+- Skylake (2017)
+- Cascade lake (2019)
+- Cooper lake (2020)
+
+The following brand identifiers are used:
+- platinium
+- gold
+- silver
+- bronze
+* AMD
+** Ryzen
+There are multiple generation for this brand of processors. They are based on the [[https://en.wikipedia.org/wiki/Zen_(microarchitecture)][zen micro architecture]]. The current (as of December 2021) generation is Ryzen 5000.
+
+The brand modifiers are:
+- ryzen 3: entry level
+- ryzen 5: mainstream
+- ryzen 9: high end performance
+- ryzen 9:enthusiast
+
+List of suffixes:
+| suffix | meaning                                    |
+|--------+--------------------------------------------|
+| X      | high performance                           |
+| G      | integrated graphics                        |
+| T      | power optimized lifecycle                  |
+| S      | low power desktop with integrated graphics |
+| H      | high performance mobile                    |
+| U      | standard mobile                            |
+| M      | low power mobile                           |
+
+** EPYC
+EPYC is the AMD brand of processors for the server market, based on the zen architecture. They use the [[https://en.wikipedia.org/wiki/Socket_SP3][SP3]] socket. The EPYC processor is chipset free.
+** Threadripper
+The threadripper is for high performance desktop. It uses the [[https://en.wikipedia.org/wiki/Socket_TR4][TR4]] socket. At the moment there's only one chipset that supports this process, the [[https://en.wikipedia.org/wiki/List_of_AMD_chipsets#TR4_chipsets][X399]].
+
+The threadripper based on zen3 architecture is not yet released, but it's expected to hit the market in the first half of Q1 2022.
+** Sockets/Chipsets
+The majority of these processors use the [[https://en.wikipedia.org/wiki/Socket_AM4][AM4 socket]]. The threadripper line uses different sockets.
+
+There are multiple [[https://en.wikipedia.org/wiki/Socket_AM4#Chipsets][chipset]] for the AM4 socket. The more advanced ones are the B550 and the X570.
+
+The threadripper processors use the TR4, sTRX4 and sWRX8 sockets.
+** Zen 3
+Zen 3 was released in November 2020.
+| model         | cores   | GHz (base) | GHz (boosted) | PCIe lanes | TDP  |
+|---------------+---------+------------+---------------+------------+------|
+| ryzen 5 5600x | 6 (12)  |        3.7 |           4.6 |         24 | 65W  |
+| ryzen 7 5800  | 8 (16)  |        3.4 |           4.6 |         24 | 65W  |
+| ryzen 7 5800x | 8 (16)  |        3.8 |           4.7 |         24 | 105W |
+| ryzen 9 5900  | 12 (24) |        3.0 |           4.7 |         24 | 65W  |
+| ryzen 9 5900x | 12 (24) |        3.7 |           4.8 |         24 | 105W |
+| ryzen 9 5950x | 16 (32) |        3.4 |           4.9 |         24 | 105W |
+
+- support PCIe 3.0 and PCIe 4.0 (except for the G series)
+- only support DDR4 (up to DDR4-3200)
diff --git a/users/fcuny/notes/content/notes/stuff-about-pcie.org b/users/fcuny/notes/content/notes/stuff-about-pcie.org
new file mode 100644
index 0000000..eeb0b16
--- /dev/null
+++ b/users/fcuny/notes/content/notes/stuff-about-pcie.org
@@ -0,0 +1,199 @@
+#+TITLE: Stuff about PCIe
+#+DATE: <2022-01-03 Mon>
+#+TAGS[]: linux hardware
+#+toc: t
+
+* Speed
+The most common versions are 3 and 4, while 5 is starting to be available with newer Intel processors.
+
+| ver | encoding  | transfer rate | x1         | x2          | x4         | x8         | x16         |
+|-----+-----------+---------------+------------+-------------+------------+------------+-------------|
+|   1 | 8b/10b    | 2.5GT/s       | 250MB/s    | 500MB/s     | 1GB/s      | 2GB/s      | 4GB/s       |
+|   2 | 8b/10b    | 5.0GT/s       | 500MB/s    | 1GB/s       | 2GB/s      | 4GB/s      | 8GB/s       |
+|   3 | 128b/130b | 8.0GT/s       | 984.6 MB/s | 1.969 GB/s  | 3.94 GB/s  | 7.88 GB/s  | 15.75 GB/s  |
+|   4 | 128b/130b | 16.0GT/s      | 1969 MB/s  | 3.938 GB/s  | 7.88 GB/s  | 15.75 GB/s | 31.51 GB/s  |
+|   5 | 128b/130b | 32.0GT/s      | 3938 MB/s  | 7.877 GB/s  | 15.75 GB/s | 31.51 GB/s | 63.02 GB/s  |
+|   6 | 128b/130  | 64.0 GT/s     | 7877 MB/s  | 15.754 GB/s | 31.51 GB/s | 63.02 GB/s | 126.03 GB/s |
+
+This is a [[https://community.mellanox.com/s/article/understanding-pcie-configuration-for-maximum-performance][useful]] link to understand the formula:
+#+begin_quote
+Maximum PCIe Bandwidth = *SPEED* * *WIDTH* * (1 - ENCODING) - 1Gb/s.
+#+end_quote
+
+We remove 1Gb/s for protocol overhead and error corrections. The main difference between the generations besides the supported speed is the encoding overhead of the packet. For generations 1 and 2, each packet sent on the PCIe has 20% PCIe headers overhead. This was improved in generation 3, where the overhead was reduced to 1.5% (2/130) - see [[https://en.wikipedia.org/wiki/8b/10b_encoding][8b/10b encoding]] and [[https://en.wikipedia.org/wiki/64b/66b_encoding][128b/130b encoding]].
+
+If we apply the formula, for a PCIe version 3 device we can expect 3.7GB/s of data transfer rate:
+#+begin_src
+8GT/s * 4 lanes * (1 - 2/130) - 1G = 32G * 0.985 - 1G = ~30Gb/s -> 3750MB/s
+#+end_src
+* Topology
+The easiest way to see the PCIe topology is with =lspci=:
+#+begin_src
+$ lspci -tv
+-[0000:00]-+-00.0  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Root Complex
+           +-01.0  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
+           +-01.1-[01]----00.0  OCZ Technology Group, Inc. RD400/400A SSD
+           +-01.3-[02-03]----00.0-[03]----00.0  ASPEED Technology, Inc. ASPEED Graphics Family
+           +-01.5-[04]--+-00.0  Intel Corporation I350 Gigabit Network Connection
+           |            +-00.1  Intel Corporation I350 Gigabit Network Connection
+           |            +-00.2  Intel Corporation I350 Gigabit Network Connection
+           |            \-00.3  Intel Corporation I350 Gigabit Network Connection
+           +-02.0  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
+           +-03.0  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
+           +-04.0  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
+           +-07.0  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
+           +-07.1-[05]--+-00.0  Advanced Micro Devices, Inc. [AMD] Zeppelin/Raven/Raven2 PCIe Dummy Function
+           |            +-00.2  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Platform Security Processor
+           |            \-00.3  Advanced Micro Devices, Inc. [AMD] Zeppelin USB 3.0 Host controller
+           +-08.0  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
+           +-08.1-[06]--+-00.0  Advanced Micro Devices, Inc. [AMD] Zeppelin/Renoir PCIe Dummy Function
+           |            +-00.1  Advanced Micro Devices, Inc. [AMD] Zeppelin Cryptographic Coprocessor NTBCCP
+           |            +-00.2  Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode]
+           |            \-00.3  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) HD Audio Controller
+           +-14.0  Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
+           +-14.3  Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge
+           +-18.0  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 0
+           +-18.1  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 1
+           +-18.2  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 2
+           +-18.3  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 3
+           +-18.4  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 4
+           +-18.5  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 5
+           +-18.6  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 6
+           \-18.7  Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 7
+#+end_src
+* View a single device
+#+begin_src
+$ lspci -s 0000:01:00.0
+01:00.0 Non-Volatile memory controller: OCZ Technology Group, Inc. RD400/400A SSD (rev 01)
+#+end_src
+* Reading =lspci= output
+#+begin_src
+$ sudo lspci -vvv -s 0000:01:00.0
+01:00.0 Non-Volatile memory controller: OCZ Technology Group, Inc. RD400/400A SSD (rev 01) (prog-if 02 [NVM Express])
+	Subsystem: OCZ Technology Group, Inc. RD400/400A SSD
+	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
+	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
+	Latency: 0, Cache Line Size: 64 bytes
+	Interrupt: pin A routed to IRQ 41
+	NUMA node: 0
+	Region 0: Memory at ef800000 (64-bit, non-prefetchable) [size=16K]
+	Capabilities: [40] Power Management version 3
+		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
+		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
+	Capabilities: [50] MSI: Enable- Count=1/8 Maskable- 64bit+
+		Address: 0000000000000000  Data: 0000
+	Capabilities: [70] Express (v2) Endpoint, MSI 00
+		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
+			ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W
+		DevCtl:	CorrErr- NonFatalErr- FatalErr- UnsupReq-
+			RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop- FLReset-
+			MaxPayload 128 bytes, MaxReadReq 512 bytes
+		DevSta:	CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr+ TransPend-
+		LnkCap:	Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L1 <4us
+			ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
+		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes, Disabled- CommClk+
+			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
+		LnkSta:	Speed 8GT/s (ok), Width x4 (ok)
+			TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
+		DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR+
+			 10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
+			 EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
+			 FRS- TPHComp- ExtTPHComp-
+			 AtomicOpsCap: 32bit- 64bit- 128bitCAS-
+		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- OBFF Disabled,
+			 AtomicOpsCtl: ReqEn-
+		LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS-
+		LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
+			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
+			 Compliance De-emphasis: -6dB
+		LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+ EqualizationPhase1+
+			 EqualizationPhase2+ EqualizationPhase3+ LinkEqualizationRequest-
+			 Retimer- 2Retimers- CrosslinkRes: unsupported
+	Capabilities: [b0] MSI-X: Enable+ Count=8 Masked-
+		Vector table: BAR=0 offset=00002000
+		PBA: BAR=0 offset=00003000
+	Capabilities: [100 v2] Advanced Error Reporting
+		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
+		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
+		UESvrt:	DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
+		CESta:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
+		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
+		AERCap:	First Error Pointer: 14, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
+			MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
+		HeaderLog: 05000001 0000010f 02000010 0f86d1a0
+	Capabilities: [178 v1] Secondary PCI Express
+		LnkCtl3: LnkEquIntrruptEn- PerformEqu-
+		LaneErrStat: 0
+	Capabilities: [198 v1] Latency Tolerance Reporting
+		Max snoop latency: 0ns
+		Max no snoop latency: 0ns
+	Capabilities: [1a0 v1] L1 PM Substates
+		L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1- ASPM_L1.2+ ASPM_L1.1- L1_PM_Substates+
+			  PortCommonModeRestoreTime=255us PortTPowerOnTime=400us
+		L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1-
+			   T_CommonMode=0us LTR1.2_Threshold=0ns
+		L1SubCtl2: T_PwrOn=10us
+	Kernel driver in use: nvme
+	Kernel modules: nvme
+
+#+end_src
+
+A few things to note from this output:
++ *GT/s* is the number of transactions supported (here, 8 billion transactions / second). This is gen3 controller (gen1 is 2.5 and gen2 is 5)xs
++ *LNKCAP* is the capabilities which were communicated, and *LNKSTAT* is the current status. You want them to report the same values. If they don't, you are not using the hardware as it is intended (here I'm assuming the hardware is intended to work as a gen3 controller). In case the device is downgraded, the output will be like this: =LnkSta: Speed 2.5GT/s (downgraded), Width x16 (ok)=
++ *width* is the number of lanes that can be used by the device (here, we can use 4 lanes)
++ *MaxPayload* is the maximum size of a PCIe packet
+* Debugging
+PCI configuration registers can be used to debug various PCI bus issues.
+
+The various registers define bits that are either set (indicated with a '+') or unset (indicated with a '-'). These bits typically have attributes of 'RW1C' meaning you can read and write them and need to write a '1' to clear them. Because these are status bits, if you wanted to 'count' the occurrences of them you would need to write some software that detected the bits getting set, incremented counters, and cleared them over time.
+
+The 'Device Status Register' (DevSta) shows at a high level if there have been correctable errors detected (CorrErr), non-fatal errors detected (UncorrErr), fata errors detected (FataErr), unsupported requests detected (UnsuppReq), if the device requires auxillary power (AuxPwr), and if there are transactions pending (non posted requests that have not been completed).
+
+#+begin_src
+10000:01:00.0 Non-Volatile memory controller: Intel Corporation NVMe Datacenter SSD [3DNAND, Beta Rock Controller] (prog-if 02 [NVM Express])
+...
+        Capabilities: [100 v1] Advanced Error Reporting
+                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
+                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
+                UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
+                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
+                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
+                AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
+#+end_src
+
++ The Uncorrectable Error Status (UESta) reports error status of individual uncorrectable error sources (no bits are set
+  above):
+  + Data Link Protocol Error (DLP)
+  + Surprise Down Error (SDES)
+  + Poisoned TLP (TLP)
+  + Flow Control Protocol Error (FCP)
+  + Completion Timeout (CmpltTO)
+  + Completer Abort (CmpltAbrt)
+  + Unexpected Completion (UnxCmplt)
+  + Receiver Overflow (RxOF)
+  + Malformed TLP (MalfTLP)
+  + ECRC Error (ECRC)
+  + Unsupported Request Error (UnsupReq)
+  + ACS Violation (ACSViol)
++ The Uncorrectable Error Mask (UEMsk) controls reporting of individual errors by the device to the PCIe root complex. A
+  masked error (bit set) is not recorded or reported. Above shows no errors are being masked)
++ The Uncorrectable Severity controls whether an individual error is reported as a Non-fatal (clear) or Fatal error
+  (set).
++ The Correctable Error Status reports error status of individual correctable error sources: (no bits are set above)
+  + Receiver Error (RXErr)
+  + Bad TLP status (BadTLP)
+  + Bad DLLP status (BadDLLP)
+  + Replay Timer Timeout status (Timeout)
+  + REPLAY NUM Rollover status (Rollover)
+  + Advisory Non-Fatal Error (NonFatalIErr)
++ The Correctable Erro Mask (CEMsk) controls reporting of individual errors by the device to the PCIe root complex. A
+  masked error (bit set) is not reported to the RC. Above shows that Advisory Non-Fatal Errors are being masked - this
+  bit is set by default to enable compatibility with software that does not comprehend Role-Based error reporting.
++ The Advanced Error Capabilities and Control Register (AERCap) enables various capabilities (The above indicates the
+  device capable of generating ECRC errors but they are not enabled):
+  + First Error Pointer identifies the bit position of the first error reported in the Uncorrectable Error Status register
+  + ECRC Generation Capable (GenCap) indicates if set that the function is capable of generating ECRC
+  + ECRC Generation Enable (GenEn) indicates if ECRC generation is enabled (set)
+  + ECRC Check Capable (ChkCap) indicates if set that the function is capable of checking ECRC
+  + ECRC Check Enable (ChkEn) indicates if ECRC checking is enabled
diff --git a/users/fcuny/notes/content/notes/working-with-go.org b/users/fcuny/notes/content/notes/working-with-go.org
new file mode 100644
index 0000000..fd39d26
--- /dev/null
+++ b/users/fcuny/notes/content/notes/working-with-go.org
@@ -0,0 +1,213 @@
+#+TITLE: Working with Go
+#+DATE: <2021-08-05 Thu>
+#+TAGS[]: go emacs
+#+toc: t
+
+/This document assumes go version >= 1.16/.
+
+* Go Modules
+[[https://blog.golang.org/using-go-modules][Go modules]] have been added in 2019 with Go 1.11. A number of changes were introduced with [[https://blog.golang.org/go116-module-changes][Go 1.16]]. This document is a reference for me so that I can find answers to things I keep forgetting.
+** Creating a new module
+To create a new module, run =go mod init golang.fcuny.net/m=. This will create two files: =go.mod= and =go.sum=.
+
+In the =go.mod= file you'll find:
+- the module import path (prefixed with =module=)
+- the list of dependencies (within =require=)
+- the version of go to use for the module
+** Versioning
+To bump the version of a module:
+#+begin_src sh
+$ git tag v1.2.3
+$ git push --tags
+#+end_src
+
+Then as a user:
+#+begin_src sh
+$ go get -d golang.fcuny.net/m@v1.2.3
+#+end_src
+** Updating dependencies
+To update the dependencies, run =go mod tidy=
+** Editing a module
+If you need to modify a module, you can check out the module in your workspace (=git clone <module URL>=).
+
+Edit the =go.mod= file to add
+#+begin_src go
+replace <module URL> => <path of the local checkout>
+#+end_src
+
+Then modify the code of the module and the next time you compile the project, the cloned module will be used.
+
+This is particularly useful when trying to debug an issue with an external module.
+** Vendor-ing modules
+It's still possible to vendor modules by running =go mod vendor=. This can be useful in the case of a CI setup that does not have access to internet.
+** Proxy
+As of version 1.13, the variable =GOPROXY= defaults to =https://proxy.golang.org,direct= (see [[https://github.com/golang/go/blob/c95464f0ea3f87232b1f3937d1b37da6f335f336/src/cmd/go/internal/cfg/cfg.go#L269][here]]). As a result, when running something like =go get golang.org/x/tools/gopls@latest=, the request goes through the proxy.
+
+There's a number of ways to control the behavior, they are documented [[https://golang.org/ref/mod#private-modules][here]].
+
+There's a few interesting things that can be done when using the proxy. There's a few special URLs (better documentation [[https://golang.org/ref/mod#goproxy-protocol][here]]):
+| path                  | description                                                                              |
+|-----------------------+------------------------------------------------------------------------------------------|
+| $mod/@v/list          | Returns the list of known versions - there's one version per line and it's in plain text |
+| $mod/@v/$version.info | Returns metadata about a version in JSON format                                          |
+| $mod/@v/$version.mod  | Returns the =go.mod= file for that version                                                 |
+
+For example, looking at the most recent versions for =gopls=:
+#+begin_src sh
+; curl -s -L https://proxy.golang.org/golang.org/x/tools/gopls/@v/list|sort -r|head
+v0.7.1-pre.2
+v0.7.1-pre.1
+v0.7.1
+v0.7.0-pre.3
+v0.7.0-pre.2
+v0.7.0-pre.1
+v0.7.0
+v0.6.9-pre.1
+v0.6.9
+v0.6.8-pre.1
+#+end_src
+
+Let's check the details for the most recent version
+#+begin_src sh
+; curl -s -L https://proxy.golang.org/golang.org/x/tools/gopls/@v/list|sort -r|head
+v0.7.1-pre.2
+v0.7.1-pre.1
+v0.7.1
+v0.7.0-pre.3
+v0.7.0-pre.2
+v0.7.0-pre.1
+v0.7.0
+v0.6.9-pre.1
+v0.6.9
+v0.6.8-pre.1
+#+end_src
+
+And let's look at the content of the =go.mod= for that version too:
+#+begin_src sh
+; curl -s -L https://proxy.golang.org/golang.org/x/tools/gopls/@v/v0.7.1-pre.2.mod
+module golang.org/x/tools/gopls
+
+go 1.17
+
+require (
+        github.com/BurntSushi/toml v0.3.1 // indirect
+        github.com/google/go-cmp v0.5.5
+        github.com/google/safehtml v0.0.2 // indirect
+        github.com/jba/templatecheck v0.6.0
+        github.com/sanity-io/litter v1.5.0
+        github.com/sergi/go-diff v1.1.0
+        golang.org/x/mod v0.4.2
+        golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
+        golang.org/x/sys v0.0.0-20210510120138-977fb7262007
+        golang.org/x/text v0.3.6 // indirect
+        golang.org/x/tools v0.1.6-0.20210802203754-9b21a8868e16
+        golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+        honnef.co/go/tools v0.2.0
+        mvdan.cc/gofumpt v0.1.1
+        mvdan.cc/xurls/v2 v2.2.0
+)
+#+end_src
+* Tooling
+** LSP
+=gopls= is the default implementation of the language server protocol maintained by the Go team. To install the latest version, run =go install golang.org/x/tools/gopls@latest=
+** =staticcheck=
+[[https://staticcheck.io/][=staticcheck=]] is a great tool to run against your code to find issues. To install the latest version, run =go install honnef.co/go/tools/cmd/staticcheck@latest=.
+* Emacs integration
+** =go-mode=
+[[https://github.com/dominikh/go-mode.el][This is the mode]] to install to get syntax highlighting (mostly).
+** Integration with LSP
+Emacs has a pretty good integration with LSP, and [[https://whatacold.io/blog/2022-01-22-emacs-eglot-lsp/]["Eglot for better programming experience in Emacs"]] is a good starting point.
+*** eglot
+[[https://github.com/joaotavora/eglot][This is the main mode to install]].
+
+The configuration is straightforward, this is what I use:
+#+begin_src elisp
+;; for go's LSP I want to use staticcheck and placeholders for completion
+(customize-set-variable 'eglot-workspace-configuration
+                        '((:gopls .
+                                  ((staticcheck     . t)
+                                   (matcher         . "CaseSensitive")
+                                   (usePlaceholders . t)))))
+
+;; ensure we load eglot for some specific modes
+(dolist (hook '(go-mode-hook nix-mode-hook))
+  (add-hook hook 'eglot-ensure))
+#+end_src
+
+=eglot= integrates well with existing modes for Emacs, mainly xref, flymake, eldoc.
+* Profiling
+** pprof
+[[https://github.com/google/pprof][pprof]] is a tool to visualize performance data. Let's start with the following test:
+#+begin_src go
+package main
+
+import (
+	"strings"
+	"testing"
+)
+
+func BenchmarkStringJoin(b *testing.B) {
+	input := []string{"a", "b"}
+	for i := 0; i <= b.N; i++ {
+		r := strings.Join(input, " ")
+		if r != "a b" {
+			b.Errorf("want a b got %s", r)
+		}
+	}
+}
+#+end_src
+
+Let's run a benchmark with ~go test . -bench=. -cpuprofile cpu_profile.out~:
+#+begin_src go
+goos: linux
+goarch: amd64
+pkg: golang.fcuny.net/m
+cpu: Intel(R) Core(TM) i3-1005G1 CPU @ 1.20GHz
+BenchmarkStringJoin-4           41833486                26.85 ns/op            3 B/op          1 allocs/op
+PASS
+ok      golang.fcuny.net/m      1.327s
+#+end_src
+
+And let's take a look at the profile with =go tool pprof cpu_profile.out=
+#+begin_src sh
+File: m.test
+Type: cpu
+Time: Aug 15, 2021 at 3:01pm (PDT)
+Duration: 1.31s, Total samples = 1.17s (89.61%)
+Entering interactive mode (type "help" for commands, "o" for options)
+(pprof) top
+Showing nodes accounting for 1100ms, 94.02% of 1170ms total
+Showing top 10 nodes out of 41
+      flat  flat%   sum%        cum   cum%
+     240ms 20.51% 20.51%      240ms 20.51%  runtime.memmove
+     220ms 18.80% 39.32%      320ms 27.35%  runtime.mallocgc
+     130ms 11.11% 50.43%      450ms 38.46%  runtime.makeslice
+     110ms  9.40% 59.83%     1150ms 98.29%  golang.fcuny.net/m.BenchmarkStringJoin
+     110ms  9.40% 69.23%      580ms 49.57%  strings.(*Builder).grow (inline)
+     110ms  9.40% 78.63%     1040ms 88.89%  strings.Join
+      70ms  5.98% 84.62%      300ms 25.64%  strings.(*Builder).WriteString
+      50ms  4.27% 88.89%      630ms 53.85%  strings.(*Builder).Grow (inline)
+      40ms  3.42% 92.31%       40ms  3.42%  runtime.nextFreeFast (inline)
+      20ms  1.71% 94.02%       20ms  1.71%  runtime.getMCache (inline)
+#+end_src
+
+We can get a breakdown of the data for our module:
+#+begin_src sh
+(pprof) list golang.fcuny.net
+Total: 1.17s
+ROUTINE ======================== golang.fcuny.net/m.BenchmarkStringJoin in /home/fcuny/workspace/gobench/app_test.go
+     110ms      1.15s (flat, cum) 98.29% of Total
+         .          .      5:   "testing"
+         .          .      6:)
+         .          .      7:
+         .          .      8:func BenchmarkStringJoin(b *testing.B) {
+         .          .      9:   b.ReportAllocs()
+      10ms       10ms     10:   input := []string{"a", "b"}
+         .          .     11:   for i := 0; i <= b.N; i++ {
+      20ms      1.06s     12:           r := strings.Join(input, " ")
+      80ms       80ms     13:           if r != "a b" {
+         .          .     14:                   b.Errorf("want a b got %s", r)
+         .          .     15:           }
+         .          .     16:   }
+         .          .     17:}
+#+end_src
diff --git a/users/fcuny/notes/content/notes/working-with-nix.org b/users/fcuny/notes/content/notes/working-with-nix.org
new file mode 100644
index 0000000..105d025
--- /dev/null
+++ b/users/fcuny/notes/content/notes/working-with-nix.org
@@ -0,0 +1,26 @@
+#+TITLE: Working with nix
+#+DATE: <2022-05-10 Tue>
+#+TAGS[]: linux nix
+
+* the =nix develop= command
+The =nix develop= command is for working on a repository. If our repository contains a =Makefile=, it will be used by the various sub-commands.
+
+=nix develop= supports multiple [[https://nixos.org/manual/nixpkgs/stable/#sec-stdenv-phases][phases]] and they map as follow:
+
+| phase          | default to   | command                 | note |
+|----------------+--------------+-------------------------+------|
+| configurePhase | =./configure=  | =nix develop --configure= |      |
+| buildPhase     | =make=         | =nix develop --build=     |      |
+| checkPhase     | =make check=   | =nix develop --check=     |      |
+| installPhase   | =make install= | =nix develop --install=   |      |
+
+In the repository, running =nix develop --build= will build the binary *using the Makefile*. This is different from running =nix build=.
+
+* the =nix build= and =nix run= commands
+** for Go
+For Go, there's the =buildGoModule=. Looking at the [[https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/go-modules/generic/default.nix][source]] we can see there's a definition of what will be done for each phases. As a result, we don't have to define them ourselves.
+
+If we run =nix build= in the repository, it will run the default [[https://github.com/NixOS/nixpkgs/blob/fb7287e6d2d2684520f756639846ee07f6287caa/pkgs/development/go-modules/generic/default.nix#L171][build phase]].
+* =buildInputs= or =nativeBuildInputs=
++ =nativeBuildInputs= is intended for architecture-dependent build-time-only dependencies
++ =buildInputs= is intended for architecture-independent build-time-only dependencies
diff --git a/users/fcuny/notes/flake.lock b/users/fcuny/notes/flake.lock
new file mode 100644
index 0000000..afaae62
--- /dev/null
+++ b/users/fcuny/notes/flake.lock
@@ -0,0 +1,42 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1649676176,
+        "narHash": "sha256-OWKJratjt2RW151VUlJPRALb7OU2S5s+f0vLj4o1bHM=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "a4b154ebbdc88c8498a5c7b01589addc9e9cb678",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1652295142,
+        "narHash": "sha256-vqvZa2xoNPhkpAhAbtUCA2wyga1qv6QeuGH2C8IVnus=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "174c43d7d17b27e50074fe3c970a5659a4d8e39b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/users/fcuny/notes/flake.nix b/users/fcuny/notes/flake.nix
new file mode 100644
index 0000000..52e25c1
--- /dev/null
+++ b/users/fcuny/notes/flake.nix
@@ -0,0 +1,46 @@
+{
+  description = "Franck Cuny's notes.";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        defaultPackage = with pkgs;
+          stdenv.mkDerivation {
+            pname = "notes.fcuny.net";
+            version = self.lastModifiedDate;
+            src = ./.;
+            buildInputs = [ hugo git ];
+            buildPhase = ''
+              mkdir -p $out
+              hugo --minify --destination $out
+            '';
+            dontInstall = true;
+          };
+
+        defaultApp = pkgs.writers.writeBashBin "run-hugo" ''
+          set -e
+          set -o pipefail
+          export PATH=${pkgs.lib.makeBinPath [ pkgs.hugo pkgs.git ]}
+          hugo server -D
+        '';
+
+        apps = {
+          deploy = pkgs.pkgs.writeShellScriptBin "run-deploy" ''
+            set -euxo pipefail
+            export PATH=${
+              pkgs.lib.makeBinPath [ pkgs.hugo pkgs.git pkgs.jq pkgs.flyctl ]
+            }:$PATH
+            bash ./scripts/deploy.sh
+          '';
+        };
+
+        devShell =
+          pkgs.mkShell { buildInputs = with pkgs; [ hugo flyctl git jq ]; };
+      });
+}
diff --git a/users/fcuny/notes/fly.toml b/users/fcuny/notes/fly.toml
new file mode 100644
index 0000000..4db1311
--- /dev/null
+++ b/users/fcuny/notes/fly.toml
@@ -0,0 +1,37 @@
+# fly.toml file generated for notes-fcunynet on 2022-03-28T19:44:54-07:00
+
+app = "notes-fcunynet"
+
+kill_signal = "SIGINT"
+kill_timeout = 5
+
+[env]
+
+[experimental]
+  allowed_public_ports = []
+  auto_rollback = true
+
+[[services]]
+  http_checks = []
+  internal_port = 8080
+  protocol = "tcp"
+  script_checks = []
+
+  [services.concurrency]
+    hard_limit = 25
+    soft_limit = 20
+    type = "connections"
+
+  [[services.ports]]
+    handlers = ["http"]
+    port = 80
+
+  [[services.ports]]
+    handlers = ["tls", "http"]
+    port = 443
+
+  [[services.tcp_checks]]
+    grace_period = "1s"
+    interval = "15s"
+    restart_limit = 6
+    timeout = "2s"
diff --git a/users/fcuny/notes/layouts/_default/baseof.html b/users/fcuny/notes/layouts/_default/baseof.html
new file mode 100644
index 0000000..0c72fb1
--- /dev/null
+++ b/users/fcuny/notes/layouts/_default/baseof.html
@@ -0,0 +1,10 @@
+<!doctype html>
+<html lang="en">
+  {{ partial "head.html" . }}
+  <body>
+    {{- partial "header.html" . -}}
+    <main>
+     {{ block "main" . }}{{ end }}
+    </main>
+  </body>
+</html>
diff --git a/users/fcuny/notes/layouts/_default/list.html b/users/fcuny/notes/layouts/_default/list.html
new file mode 100644
index 0000000..d2c59a7
--- /dev/null
+++ b/users/fcuny/notes/layouts/_default/list.html
@@ -0,0 +1,10 @@
+{{ define "main" }}
+
+<article>
+
+  {{ $pgs := where .Data.Pages "Params.hidden" "ne" "true" }}
+  {{ partial "postlist" $pgs }}
+
+</article>
+
+{{ end }}
diff --git a/users/fcuny/notes/layouts/_default/single.html b/users/fcuny/notes/layouts/_default/single.html
new file mode 100644
index 0000000..7f594ad
--- /dev/null
+++ b/users/fcuny/notes/layouts/_default/single.html
@@ -0,0 +1,40 @@
+{{ define "main" }}
+
+<div>
+
+<h1>{{ .Title }}</h1>
+
+<div id="meta">
+  {{- $pub := .Date.Format "Jan 2, 2006" -}}
+  {{- $mod := "" -}}
+  {{- if (not .GitInfo) }}
+  {{- $mod = .Lastmod.Format "Jan 2, 2006" -}}
+  {{ else }}
+  {{- $mod = .Page.GitInfo.CommitDate.Format "Jan 2, 2006" -}}
+  {{ end -}}
+  {{ if eq $pub $mod }}
+  <div id="meta_date">published {{ $pub }}</div>
+  {{ else }}
+  <div id="meta_date">published {{ $pub }} - last modified {{ $mod }}</div>
+  {{ end }}
+  {{ if .Params.tags }}
+  <div>
+  {{ if eq (len .Params.tags) 1 }}
+  tag:
+  {{ else }}
+  tags:
+  {{ end }}
+  {{ range $idx, $tag := .Params.tags }}
+  <span id="meta_tags"><a href="/tags/{{ $tag | urlize }}/">{{ $tag }}</a></span>
+  {{ end }}
+  </div>
+  {{ end }}
+</div>
+
+<article>
+{{ .Content }}
+</article>
+
+</div>
+
+{{ end }}
diff --git a/users/fcuny/notes/layouts/index.html b/users/fcuny/notes/layouts/index.html
new file mode 100644
index 0000000..8ddc67d
--- /dev/null
+++ b/users/fcuny/notes/layouts/index.html
@@ -0,0 +1,22 @@
+{{ define "main" }}
+
+<article>
+
+  A place to collect random notes.
+
+  <ul id="post-permalink">
+  {{- $pages := where site.RegularPages "Type" "in" site.Params.mainSections }}
+  {{ range $pages }}
+  <li>
+    <a href="{{ .Permalink }}">{{ .Title }}</a>
+    {{ range $idx, $tag := .Params.tags }}
+    <span id="meta_tags"><a href="/tags/{{ $tag | urlize }}/">{{ $tag }}</a></span>
+  {{ end }}
+  </li>
+
+  {{ end }}
+  </ul>
+
+</article>
+
+{{ end }}
diff --git a/users/fcuny/notes/layouts/partials/head.html b/users/fcuny/notes/layouts/partials/head.html
new file mode 100644
index 0000000..6e5a6fb
--- /dev/null
+++ b/users/fcuny/notes/layouts/partials/head.html
@@ -0,0 +1,17 @@
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+
+  <link rel="canonical" href="{{ .Permalink }}">
+
+  {{ $css := "/css/custom.css"  }}
+  <link rel="stylesheet" href="{{ $css }}">
+  <link rel="author" href="humans.txt" />
+
+  <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🖥️</text></svg>">
+
+  <meta name="description" content="Franck's notes.">
+  <meta name="author" content="Franck Cuny">
+
+  <title>{{ .Title }}</title>
+</head>
diff --git a/users/fcuny/notes/layouts/partials/header.html b/users/fcuny/notes/layouts/partials/header.html
new file mode 100644
index 0000000..798463c
--- /dev/null
+++ b/users/fcuny/notes/layouts/partials/header.html
@@ -0,0 +1,5 @@
+<header>
+  <nav class="navbar">
+    <a class="nav-bold" href="{{ .Site.BaseURL }}">~/notes</a>
+  </nav>
+</header>
diff --git a/users/fcuny/notes/layouts/partials/postlist.html b/users/fcuny/notes/layouts/partials/postlist.html
new file mode 100644
index 0000000..3d5cf04
--- /dev/null
+++ b/users/fcuny/notes/layouts/partials/postlist.html
@@ -0,0 +1,12 @@
+{{ range .GroupByDate "2006" }}
+  <h2>{{ .Key }}</h2>
+  <ul>
+    {{ range .Pages.ByDate.Reverse }}
+    <li>
+      <div>
+        <a href="{{ .Permalink }}">{{ .Title }}</a>
+      </div>
+    </li>
+    {{ end }}
+  </ul>
+{{ end }}
diff --git a/users/fcuny/notes/layouts/taxonomy/tag.html b/users/fcuny/notes/layouts/taxonomy/tag.html
new file mode 100644
index 0000000..2b7d98a
--- /dev/null
+++ b/users/fcuny/notes/layouts/taxonomy/tag.html
@@ -0,0 +1,6 @@
+{{ define "main" }}
+
+  {{ $pgs := where .Data.Pages "Params.hidden" "ne" "true" }}
+  {{ partial "postlist" $pgs }}
+
+{{ end }}
diff --git a/users/fcuny/notes/scripts/deploy.sh b/users/fcuny/notes/scripts/deploy.sh
new file mode 100755
index 0000000..4075f08
--- /dev/null
+++ b/users/fcuny/notes/scripts/deploy.sh
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+git diff --exit-code
+git diff --staged --exit-code
+
+flyctl deploy
+
+VERSION=$(flyctl info -j |jq -r '.App | "notes.fcuny.net/v\(.Version)"')
+
+git tag -a --message ${VERSION} ${VERSION}
+git push origin --all
+git push origin --tags
+
+flyctl agent stop
diff --git a/users/fcuny/notes/static/CNAME b/users/fcuny/notes/static/CNAME
new file mode 100644
index 0000000..5f43d63
--- /dev/null
+++ b/users/fcuny/notes/static/CNAME
@@ -0,0 +1 @@
+notes.fcuny.net
diff --git a/users/fcuny/notes/static/css/custom.css b/users/fcuny/notes/static/css/custom.css
new file mode 100644
index 0000000..e02631a
--- /dev/null
+++ b/users/fcuny/notes/static/css/custom.css
@@ -0,0 +1,194 @@
+html {
+  margin-left: 2em;
+  margin-right: 0em;
+  margin-top: 1em;
+}
+
+body {
+  font-family: monospace;
+  font-size: 1.15em;
+  line-height: 1.5em;
+  color: #0e0e0b;
+  padding: 0 0.55em;
+  max-width: 60rem;
+}
+
+h1 {
+  color: #0e0e0b;
+  font-size: 2rem;
+  margin-top: 1em;
+  margin-bottom: 0.34em;
+}
+
+h2, h3 {
+  border-bottom: 1px solid #eee;
+  font-style: italic;
+}
+h2 {
+  margin-top: 1.25em;
+  margin-bottom: 0.41em;
+  font-size: 1.4rem;
+}
+h3 {
+  margin-top: 1.5em;
+  margin-bottom: 0.5em;
+  font-size: 1.2rem;
+}
+
+hr{
+  color:#000111;
+  background-color:#000111;
+  border:none;
+  height:1px
+}
+
+a {
+  color:#047bc2;
+  transition:color .1s ease-in-out;
+}
+
+a:link,
+a:hover,
+a:focus,
+a:active {
+  color:#047bc2;
+  text-decoration: underline;
+  text-underline-offset:.2rem
+}
+
+span.published, span.updated {
+  display: center;
+  font-style: oblique;
+}
+
+code {
+  font-family: monospace;
+  padding-left: 0.2em;
+  padding-right: 0.2em;
+  border-radius: 4px;
+}
+
+p code {
+  color: black;
+  background-color: #eee;
+  padding: 0 0.2rem;
+  font-size: 1.1em;
+}
+
+pre {
+  font-family: monospace;
+  font-size: 1.1em;
+  margin: 0;
+  word-wrap: normal;
+  padding: 0.8em;
+  overflow-x: auto;
+  border: 1px solid #eee;
+  border-radius: 3px;
+  background-color: #fafafa;
+}
+
+#meta {
+  display: row;
+}
+
+#meta_tags {
+  padding: 0 .5rem;
+  font-size: 0.8rem;
+  border: 2px solid #eee;
+  background-color: #eee;
+}
+
+#meta_tags a {
+  text-decoration: none;
+  border-bottom: none;
+  color: #005a9c;
+}
+
+#meta_date {
+  font-style: italic;
+  font-size: 0.8rem;
+}
+
+table {
+  width: 100%;
+  border-spacing: px;
+  outline: none;
+}
+
+td{
+  padding-left: 0.4em;
+  padding-top: 0.4em;
+  padding-bottom: 0.4em;
+}
+thead {
+  color: #000;
+  font-style: bold;
+  text-align: left;
+}
+table, th, td {
+  font-family: monospace;
+  border: 1px solid;
+  border-collapse: collapse;
+  color: #000;
+}
+
+blockquote {
+  font-size: 0.95rem;
+  font-style: italic;
+  margin: 0 0 1.5em;
+  padding-left: 1em;
+  border-left: .2em solid #bdbdbd
+}
+
+nav {
+  padding-right: 10px;
+  font-size: 1.4em;
+  display: flex;
+  font-family: monospace;
+  justify-content: space-between;
+  align-items: center;
+  padding-top: 0.5rem;
+}
+
+.nav-links {
+  list-style: none;
+  display: flex;
+}
+
+.navbar a {
+  display: inline-block;
+  text-decoration: none;
+}
+
+.navbar a:hover {
+  background-color: #b72d2d;
+  color: #fafafa;
+  text-decoration: none;
+}
+
+.nav-bold {
+  font-weight: 700;
+  color: #b72d2d;
+  text-decoration: none;
+}
+
+article {
+  text-align: justify;
+  padding-top: 2em;
+}
+
+#post-permalink {
+  list-style-type: none;
+  padding-left: 0;
+}
+
+#post-permalink>li {
+ line-height:1.2rem;
+ margin:.6rem 0
+}
+
+.post-date {
+  font-family: monospace;
+  font-weight: 400;
+  font-size: 1.1em;
+}
diff --git a/users/fcuny/notes/static/humans.txt b/users/fcuny/notes/static/humans.txt
new file mode 100644
index 0000000..d2c9d47
--- /dev/null
+++ b/users/fcuny/notes/static/humans.txt
@@ -0,0 +1,10 @@
+/* TEAM */
+Author: Franck Cuny
+Contact: franck [at] fcuny.net
+Twitter: @franckcuny
+Location: Berkeley, CA
+
+/* SITE */
+CA: Let's Encrypt
+Host: Fly.io
+Serving: Linux, Go