home: add 'nixgl'

modules/home/default.nix

@@ -28,6 +28,7 @@
     ./mpv
     ./nix
     ./nix-index
+    ./nixgl
     ./nixpkgs
     ./nm-applet
     ./packages

modules/home/nixgl/default.nix

@@ -0,0 +1,17 @@
+{ config, inputs, lib, ... }:
+let
+  cfg = config.my.home.nixgl;
+in
+{
+  options.my.home.nixgl = with lib; {
+    enable = mkEnableOption "nixGL configuration";
+  };
+
+  config = lib.mkIf cfg.enable (lib.mkMerge [
+    {
+      nixGL = {
+        inherit (inputs.nixgl) packages;
+      };
+    }
+  ]);
+}