let
  fcuny =
    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINBkozy+X96u5ciX766bJ/AyQ3xm1tXZTIr5+4PVFZFi";
  users = [ fcuny ];

  vm-aarch64 =
    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILvVTAPXBOynTeMXvti6Xt9luCJAHaHZBb6aGs0SDoO";
  vm-synology =
    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHf5gXGbOjaoqdpCDnHjBMhikuM0smLKhUo7J83+by+K";
  systems = [ vm-aarch64 vm-synology ];
in
{
  "restic-backups.age".publicKeys = [ fcuny vm-synology ];
  "ddns-updater.age".publicKeys = users ++ [ vm-synology ];
}