diff --git a/nixos/boxes/foureighty/default.nix b/nixos/boxes/foureighty/default.nix
index 11e078ea..ade42dc5 100644
--- a/nixos/boxes/foureighty/default.nix
+++ b/nixos/boxes/foureighty/default.nix
@@ -13,6 +13,7 @@
     ./tailscale-foureighty.nix
     ../../distributed-builds.nix
     ../../libvirt.nix
+    ../../virtualbox.nix
     ../../backups.nix
     ../../gui
     ../../i3
diff --git a/nixos/virtualbox.nix b/nixos/virtualbox.nix
index 9f78c69b..0a07de21 100644
--- a/nixos/virtualbox.nix
+++ b/nixos/virtualbox.nix
@@ -1,6 +1,9 @@
 { config, pkgs, ... }:
 {
+  nixpkgs.config.allowUnfree = true;
   virtualisation.virtualbox.host = {
     enable = true;
+    enableExtensionPack = true;
   };
+  users.extraGroups.vboxusers.members = [ "cyryl" ];
 }