{
  config,
  lib,
  pkgs,
  ...
}:
with lib; let
  cfg = config.nixfiles.modules.kde;
in {
  options.nixfiles.modules.kde.enable =
    mkEnableOption "Whether to enable KDE Plasma 5.";

  config = mkIf cfg.enable {
    nixfiles.modules = {
      gnupg.pinentry = mkForce "qt";
      sound.enable = true;
      x11.enable = true;
    };

    services.xserver = {
      desktopManager.plasma5.enable = true;
      displayManager.sddm.enable = true;
    };

    environment.systemPackages = with pkgs; [pinentry-qt];
  };
}