update system

modules/nixos/usecases/localai.nix

@@ -0,0 +1,36 @@
+{
+  config,
+  lib,
+  ...
+}:
+
+with lib;
+
+let
+  cfg = config.usecases.localai;
+in
+{
+  options.usecases.localai = {
+    enable = mkEnableOption "Enable local LLM services";
+  };
+
+  config = mkIf cfg.enable {
+    networking.hosts = {
+      "127.0.0.1:57461" = [ "ai.local" ];
+    };
+
+    services = {
+      ollama.enable = true;
+      open-webui = {
+        enable = true;
+        port = 57461;
+        environment = {
+          ANONYMIZED_TELEMETRY = "False";
+          DO_NOT_TRACK = "True";
+          SCARF_NO_ANALYTICS = "True";
+          WEBUI_AUTH = "False";
+        };
+      };
+    };
+  };
+}