Refactor modules into nixos and home-manager

modules/home-manager/programs/graphics.nix

@@ -0,0 +1,28 @@
+{ config, lib, pkgs, ... }:
+
+let cfg = config.modules.programs.graphics;
+in {
+  options.modules.programs.graphics = {
+    modeling.enable = lib.mkOption {
+      default = false;
+      example = true;
+    };
+    raster.enable   = lib.mkOption {
+      default = false;
+      example = true;
+    };
+    vector.enable   = lib.mkOption {
+      default = false;
+      example = true;
+    };
+  };
+
+  config = {
+    user.packages = with pkgs; [
+      (lib.mkIf cfg.modeling.enable blender)
+      (lib.mkIf cfg.raster.enable gimp)
+      (lib.mkIf cfg.raster.enable krita)
+      (lib.mkIf cfg.vector.enable inkscape)
+    ];
+  };
+}