{
  flake.modules.homeManager.gui =
    { pkgs, ... }:
    {
      home.packages = [
        (pkgs.writeShellApplication {
          name = "battery";

          runtimeInputs = with pkgs; [ upower ];

          text = ''
            upower -i /org/freedesktop/UPower/devices/battery_BAT1 | grep -E 'state|to full|percentage'
          '';
        })
      ];
    };
}