{
  # Enable the X11 windowing system.
  services.xserver = {
    enable = true;
    videoDrivers = ["nvidia"];
    displayManager = {
      sddm.enable = true;
      defaultSession = "plasmawayland";
    };
    desktopManager = {
      plasma5.enable = true;
      xfce.enable = true;
    };
  };

  # Enable touchpad support (enabled default in most desktopManager).
  # services.xserver.libinput.enable = true;
}