{ pkgs, ... }:
{
  # Enable CUPS to print documents.
  services.printing.enable = true;
  services.printing.drivers = [ pkgs.hplipWithPlugin ];

  # Enable the X11 windowing system.
  services.xserver.enable = true;
  services.xserver.enableCtrlAltBackspace = true;
  services.xserver.layout = "us";
  services.xserver.xkbVariant = "altgr-intl";
  services.xserver.xkbOptions = "eurosign:e";

  # Enable XMonad
  services.xserver.displayManager.slim.enable = true;
  services.xserver.displayManager.slim.defaultUser = "jonas";
  services.xserver.desktopManager.gnome3.enable = true;
  services.xserver.desktopManager.xterm.enable = false;
  services.xserver.windowManager.xmonad.enable = true;
  services.xserver.windowManager.xmonad.enableContribAndExtras = true;
}