{ pkgs, lib, config, ... }: {
  options.mods = {
    xorg.enable = lib.mkEnableOption "enables xorg";
    monitor.main.resolution = lib.mkOption {
      description = "main monitor resolution";
      type = lib.types.string;
      default = "1920x1080";
      example = "2560x1440";
    };
  };

  config = let 
    startupTargets = [
      "systemd-user-sessions.service"
      "multi-user.target"
      "network-online.target"
    ];
  
  in lib.mkIf config.mods.xorg.enable {
    services.xserver.enable = true;
    services.xserver.xkb.layout = "us";
    services.xserver.xkb.options = "caps:escape";

    services.xserver.displayManager.gdm.enable = true;
    services.xserver.displayManager.autoLogin.enable = true;
    services.xserver.displayManager.autoLogin.user =
      config.mods.user.name;

    systemd.services.display-manager.wants = startupTargets;
    systemd.services.display-manager.after = startupTargets;
  };
}