diff --git a/lass/1systems/aergia/config.nix b/lass/1systems/aergia/config.nix
index a723a6385..ed5bbcf12 100644
--- a/lass/1systems/aergia/config.nix
+++ b/lass/1systems/aergia/config.nix
@@ -67,4 +67,10 @@
   boot.binfmt.emulatedSystems = [
     "aarch64-linux"
   ];
+
+  boot.cleanTmpDir = true;
+
+  # vbox
+  virtualisation.virtualbox.host.enable = true;
+  users.users.mainUser.extraGroups = [ "vboxusers" ];
 }