feat(desktop): add aagl.

modules/linux/nixos/aagl.nix

@@ -0,0 +1,20 @@
+{
+  config,
+  inputs,
+  lib,
+  ...
+}: {
+  imports = [
+    inputs.aagl-gtk-on-nix.nixosModules.default
+  ];
+
+  options = {
+    crony.aagl.enable = lib.mkEnableOption "Enable aagl.";
+  };
+
+  config = lib.mkIf config.crony.aagl.enable {
+    nix.settings = inputs.aagl-gtk-on-nix.nixConfig;
+
+    programs.anime-game-launcher.enable = true;
+  };
+}