anchor.diff:      serviceDirectories = cfg.packages;
     };
   
  +  inherit (lib) mkOption types;
  +
   in
   
   {
  -  ###### interface
  -
     options = {
   
       services.dbus = {
  
positive.code: 
      users.groups.messagebus.gid = config.ids.gids.messagebus;
  
      systemd.packages = [ pkgs.dbus.daemon ];
  
      security.wrappers.dbus-daemon-launch-helper = {
        source = "${pkgs.dbus.daemon}/libexec/dbus-daemon-launch-helper";
  
negative.code:     };
    };
  
    config = lib.mkIf cfg.enable {
      environment.systemPackages = [
        pkgs.dbus.daemon
        pkgs.dbus
      ];
  
      environment.etc."dbus-1".source = configDir;
  
  