{ pkgs
, lib
, config
, ... }: with lib; let
  cfg = config.home.plasma;
in {
  options.home.plasma = {
    enable = mkEnableOption "KDE plasma desktop environment";
  };

  config = {
    users.homeModules = [
      # this module passes plasma configuration to home-manager
      { passthrough.plasma = cfg; }
    ];

    specialisation.noplasma = with cfg; mkIf enable {
      configuration = {
        home.plasma.enable = mkForce false;
      };
    };

    programs.regreet.enable = mkIf cfg.enable false;
    services.xserver.enable = mkIf cfg.enable true;
    services.xserver.displayManager.startx.enable = mkIf cfg.enable false;
    services.xserver.displayManager.sddm.enable = mkIf cfg.enable true;
    services.xserver.desktopManager.plasma5.enable = mkIf cfg.enable true;

    users.home.persist.directories = mkIf cfg.enable [ ];
  };
}