make virtualbox a more proper module

hosts/othalan/default.nix

@@ -5,12 +5,12 @@
 }: {
   imports = with self.nixosModules; [
     nix-ld
-    virtualbox
     restic
     docker
   ];
 
   oizys = {
+    vbox.enable = true;
     desktop.enable = true;
     vpn.enable = true;
     languages = [

modules/common.nix

@@ -19,6 +19,9 @@
     qtile
     hyprland
 
+
+    virtualbox
+
     gui
 
     languages

modules/virtualization/virtualbox.nix

@@ -1,7 +1,17 @@
-{...}: {
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkIf;
+  cfg = config.oizys.vbox;
+in {
+  options.oizys.vbox.enable = mkEnableOption "enable virtualbox host";
+  config = mkIf cfg.enable {
   virtualisation.virtualbox = {
     host.enable = true;
-    # guest.enable = true;
   };
   users.extraGroups.vboxusers.members = ["daylin"];
+  };
 }