feat(llm): openwebui

hosts/architect/llm.nix

@@ -10,16 +10,20 @@ in
     systemPackages = [ ollamaPkg ];
   };
 
-  services.ollama = {
-    enable = true;
+  services = {
+    ollama = {
+      enable = true;
 
-    package = ollamaPkg;
-    acceleration = "cuda";
-    environmentVariables = {
-      OLLAMA_FLASH_ATTENTION = "1";
-      OLLAMA_NUM_PARALLEL = "2";
-      OLLAMA_KV_CACHE_TYPE = "q8_0";
+      package = ollamaPkg;
+      acceleration = "cuda";
+      environmentVariables = {
+        OLLAMA_FLASH_ATTENTION = "1";
+        OLLAMA_NUM_PARALLEL = "2";
+        OLLAMA_KV_CACHE_TYPE = "q8_0";
+      };
     };
+
+    open-webui.enable = true;
   };
 
   architect.vhost.${backendDomain} = {
@@ -38,4 +42,15 @@ in
       '';
     };
   };
+
+  architect.vhost.${frontendDomain} = {
+    dnsInterfaces = [ "tailscale" "lan" ];
+
+    locations."/" = {
+      host = config.services.open-webui.host;
+      port = config.services.open-webui.port;
+      allowLan = true;
+      allowWAN = true;
+    };
+  };
 }