{
  config,
  lib,
  pkgs,
  ...
}: {
  virtualisation.virtualbox.host.enable = true;
  # virtualisation.virtualbox.host.enableExtensionPack = true;
  # virtualisation.virtualbox.guest.enable = true;
  # virtualisation.virtualbox.guest.x11 = true;
  users.extraGroups.vboxusers.members = ["julian"];
}