{ config, pkgs, ... }: {
  services.xserver = {
    # https://nixos.org/manual/nixos/stable/index.html#chap-gnome
    # Enable the GNOME Desktop Environment.
    displayManager.defaultSession = "plasmawayland";
    displayManager.sddm.enable = true;
    desktopManager.plasma5.enable = true;
  };
}