systemd.services.puffy.enable = true;
  systemd.services.puffy.serviceConfig = {
    User="lebeld";
    Group="vboxusers";
    ExecStart="${pkgs.virtualbox}/bin/VBoxHeadless startvm Puffy";
    ExecStop="${pkgs.virtualbox}/bin/VBoxHeadless controlvm Puffy savestate";
    Restart="on-success";
  };