{ pkgs
, lib
, config
, ... }: with lib; let
  gui = with config.faucet.gui; ( enable && session );
in mkIf gui {
  services.xserver.displayManager.sessionPackages = [
    (pkgs.writeTextFile {
      name = "sway-session";
      destination = "/share/wayland-sessions/sway.desktop";
      text = ''
        [Desktop Entry]
        Name=Sway
        Comment=An i3-compatible Wayland compositor
        Exec=sway --unsupported-gpu
        Type=Application
      '';
    } // { providedSessions = [ pkgs.sway.meta.mainProgram ]; })
  ];

  security.pam.services.swaylock = { };
  programs.light.enable = true;
}