#+TITLE: Personal configurations, scripts and tools.

* goals
- keep it simple
- configurations work the same way, everywhere
* emacs
** go
*** compile
You can compile a go binary using =M-x compile= inside a go buffer.
*** debugging
We need to install =dlv= first:
#+begin_src sh
go install github.com/go-delve/delve/cmd/dlv@latest
#+end_src

For =dap-mode= you also need to install =nodejs=. On arch you do this with
#+begin_src sh
sudo pacman -Syu nodejs
#+end_src

Then from emacs =M-x dap-go-set= to install the dependencies.

It's unclear as to why =node= is still in the picture since it looks like =dlv= seems to support =dap= directly (see [[https://github.com/go-delve/delve/issues/1515][delve/issues/1515]]).

To debug a program, you can set breakpoints where you need with =M-x dap-breakpoint-add=. To start the debugger hit =M-x dap-debug=.

If the program you debug needs argument, call =M-x dap-debug-edit-template=. Add the argument(s) you need to the program and evaluate the buffer (=C-c C-e=). Next time you call the debugger, the argument(s) will be passed to the program. You can also set environment variables if you need.

The binding =C-c d= will bring an hydra menu for debugging.

The REPL is not brought on by default when starting a debugging session, but =M-x dap-ui-repl= will start a REPL (the position is controlled by the variable =dap-ui-buffer-configurations=).
* Linux
** installed packages
Under arch linux, you can run the following to get the list of installed packages:
,
#+begin_src sh
pacman -Qqe
#+end_src

#+RESULTS:
| alacritty              |
| alsa-utils             |
| aspell                 |
| aspell-en              |
| base                   |
| btrfs-progs            |
| chromium               |
| dmenu                  |
| docker                 |
| easytag                |
| emacs                  |
| ethtool                |
| faac                   |
| feh                    |
| firefox                |
| fwupd                  |
| gcc                    |
| git                    |
| gnome-keyring          |
| go                     |
| htop                   |
| hugo                   |
| i3-wm                  |
| i3lock                 |
| i3status               |
| intel-ucode            |
| iwd                    |
| jq                     |
| kubectl                |
| lightdm                |
| lightdm-gtk-greeter    |
| linux                  |
| linux-firmware         |
| make                   |
| man-db                 |
| mc                     |
| mg                     |
| mpc                    |
| mpd                    |
| mupdf                  |
| nautilus               |
| network-manager-applet |
| nodejs                 |
| noto-fonts             |
| noto-fonts-cjk         |
| noto-fonts-emoji       |
| openssh                |
| podman                 |
| pulseaudio             |
| pulseaudio-alsa        |
| qrencode               |
| racket-minimal         |
| redshift               |
| restic                 |
| rhythmbox              |
| ripgrep                |
| rsync                  |
| sane-airscan           |
| simple-scan            |
| smbclient              |
| strace                 |
| sudo                   |
| syncthing              |
| systemd-resolvconf     |
| tcpdump                |
| tmux                   |
| ttf-bitstream-vera     |
| ttf-dejavu             |
| ttf-droid              |
| unzip                  |
| vi                     |
| vlc                    |
| w3m                    |
| wavemon                |
| wireguard-tools        |
| wireshark-cli          |
| wireshark-qt           |
| xclip                  |
| xdg-user-dirs          |
| xf86-video-intel       |
| xorg-server            |
| xorg-xmodmap           |
| xorg-xrandr            |
| xorg-xrdb              |
| xorg-xsetroot          |
| xss-lock               |
| xterm                  |
| zsh                    |

** xorg
To fix the touchpad (use reverse / natural scrolling and faster movement):
#+begin_src
#/etc/X11/xorg.conf.d/30-touchpad.conf
Section "InputClass"
    Identifier "touchpad"
    Driver "libinput"
    MatchIsTouchpad "on"
    Option "NaturalScrolling" "true"
    Option "AccelSpeed" "0.3"
EndSection
#+end_src

In case it's needed, the configuration for the DELL 4k monitor:
#+begin_src
#/etc/X11/xorg.conf.d/25-dell-monitor-U2718Q.conf
# Dell 4k home monitors (U2718Q)
Section "Monitor"
    Identifier "DP-3"
    Option "DPMS" "true"
EndSection
#+end_src

The following udev rules:
#+begin_src
#/etc/udev/rules.d/99-monitor-hotplug.rules
KERNEL=="card0", ACTION=="change", SUBSYSTEM=="drm", ENV{DISPLAY}=":0" ENV{HOTPLUG}=="1", RUN+="/usr/local/bin/monitor-hotplug"
#+end_src