{ pkgs, ... }:

{
  services = {
    xserver = {
      enable = true;

      displayManager = {
        lightdm = {
          enable = true;
          greeters.slick.enable = true;

          extraSeatDefaults = ''
            greeter-show-manual-login=true
            greeter-hide-users=true
            allow-guest=false
          '';
        };
      };

      desktopManager = {
        gnome = {
          enable = true;
          debug = true;
        };

        xterm.enable = false;
      };

      xkb.layout = "de";
    };

    displayManager = {
      defaultSession = "gnome";
      logToFile = true;
    };

    gnome = {
      core-utilities.enable = true;
      core-shell.enable = true;
      core-os-services.enable = true;
      gnome-keyring.enable = true;
    };
  };

  environment.gnome.excludePackages = with pkgs; [
    epiphany
    gnome-online-accounts-gtk
    gnome-tour
    gnome.geary
    gnome.gnome-calendar
    gnome.gnome-contacts
    xterm
  ];

  programs.dconf = {
    enable = true;
    profiles.user.databases = [
      {
        settings = {
          # Set the color scheme to dark.
          "org/gnome/desktop/interface".color-scheme = "prefer-dark";

          "org/gnome/desktop/wm/keybindings".close = [ "<Super>q" ];

          "org/gnome/settings-daemon/plugins/power".power-button-action = "shutdown";
          "org/gnome/settings-daemon/plugins/power".sleep-inactive-ac-type = "nothing";
        };
      }
    ];
  };
}