{
  pkgs,
  lib,
  ...
}: let
  setvcp = "${lib.meta.getExe pkgs.ddcutil} setvcp D6";
in {
  hardware.i2c.enable = true;
  systemd.services = {
    monitor-off = rec {
      script = "${setvcp} 05";
      wantedBy = ["sleep.target" "final.target"];
      before = wantedBy;

      serviceConfig.Type = "oneshot";
      unitConfig.DefaultDependencies = false;
    };

    monitor-on = rec {
      script = "${setvcp} 01";
      wantedBy = ["sleep.target" "multi-user.target"];
      after = wantedBy;
    };
  };
}