fix: split up 3d module

home/modules/3d/default.nix

@@ -1,11 +1,32 @@
-{ pkgs, ... }:
-
 {
-  home.packages = with pkgs; [
-    bambu-studio
-    blender
-    openscad-lsp
-    openscad-unstable
-    orca-slicer
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  cfg = config.modules."3d";
+in
+{
+  options.modules."3d" = {
+    printing.enable = lib.mkEnableOption "3D printing tools";
+    modeling.enable = lib.mkEnableOption "3D modeling tools";
+  };
+
+  config = lib.mkMerge [
+    (lib.mkIf cfg.printing.enable {
+      home.packages = with pkgs; [
+        bambu-studio
+        orca-slicer
+      ];
+    })
+    (lib.mkIf cfg.modeling.enable {
+      home.packages = with pkgs; [
+        blender
+        openscad-lsp
+        openscad-unstable
+      ];
+    })
   ];
 }