add: ai modular

config/modules/ai/ai.nix

@@ -0,0 +1,21 @@
+{ den, modules, ... }:
+{
+  modules.ai = {
+    homeManager =
+      { pkgs, ... }:
+      {
+        home.packages = [ pkgs.opencode ];
+      };
+  };
+  modules.ai.ollama-cuda = {
+    homeManager =
+      { pkgs, ... }:
+      {
+        services.ollama = {
+          enable = true;
+          package = pkgs.ollama-cuda;
+          loadModels = "qwen3-coder";
+        };
+      };
+  };
+}