diff --git a/desktop/developer.nix b/desktop/developer.nix
index 16b9985..7d6cb67 100644
--- a/desktop/developer.nix
+++ b/desktop/developer.nix
@@ -5,6 +5,7 @@ let
 in {
   options.aviallon.developer = {
     enable = mkEnableOption "enable developer mode on this machine";
+    virtualbox.unstable = mkEnableOption "use unstable virtualbox";
   };
   config = mkIf cfg.enable {
     system.nixos.tags = [ "developer" ];
@@ -68,6 +69,13 @@ in {
       host.enableHardening = false; # Causes kernel build failures
     };
 
+    nixpkgs.overlays = []
+      ++ optional cfg.virtualbox.unstable (final: prev: {
+        virtualbox = final.unstable.virtualbox;
+        virtualboxExtpack = final.unstable.virtualboxExtpack;
+      })
+    ;
+
     environment.extraOutputsToInstall = [
       "doc" "info" "dev" "debug" "static"
     ];