anchor.diff:          > "$out/session-local.conf"
       '';
     };
  -
   in
   
   {
  
positive.code: 
      systemd.packages = [ pkgs.dbus ];
  
      security.setuidOwners = singleton
        { program = "dbus-daemon-launch-helper";
          source = "${pkgs.dbus}/libexec/dbus-daemon-launch-helper";
          owner = "root";
          group = "messagebus";
          setuid = true;
          setgid = false;
          permissions = "u+rx,g+rx,o-rx";
        };
  
      services.dbus.packages = [
        pkgs.dbus
  
negative.code: with lib;
  
  let
    cfg = config.services.dbus;
  
    homeDir = "/var/run/dbus";
  