diff --git a/extensions/engine-management-extension/src/index.ts b/extensions/engine-management-extension/src/index.ts
index 34195c8cc..331bf6531 100644
--- a/extensions/engine-management-extension/src/index.ts
+++ b/extensions/engine-management-extension/src/index.ts
@@ -39,8 +39,8 @@ export default class JanEngineManagementExtension extends EngineManagementExtens
       prefixUrl: API_URL,
       headers: apiKey
         ? {
-            Authorization: `Bearer ${apiKey}`,
-          }
+          Authorization: `Bearer ${apiKey}`,
+        }
         : {},
       retry: 10,
     })
@@ -51,7 +51,7 @@ export default class JanEngineManagementExtension extends EngineManagementExtens
    */
   async onLoad() {
     // Update default local engine
-    this.updateDefaultEngine()
+    // this.updateDefaultEngine()
 
     // Migrate
     this.migrate()
@@ -60,12 +60,13 @@ export default class JanEngineManagementExtension extends EngineManagementExtens
   /**
    * Called when the extension is unloaded.
    */
-  onUnload() {}
+  onUnload() { }
 
   /**
    * @returns A Promise that resolves to an object of list engines.
    */
   async getEngines(): Promise<Engines> {
+    return {}
     return this.apiInstance().then((api) =>
       api
         .get('v1/engines')
@@ -94,6 +95,7 @@ export default class JanEngineManagementExtension extends EngineManagementExtens
    * @returns A Promise that resolves to an array of installed engine.
    */
   async getInstalledEngines(name: string): Promise<EngineVariant[]> {
+    return []
     return this.apiInstance().then((api) =>
       api
         .get(`v1/engines/${name}`)
@@ -223,7 +225,7 @@ export default class JanEngineManagementExtension extends EngineManagementExtens
           },
         })
         .then((e) => e)
-        .then(() => {})
+        .then(() => { })
     )
   }
 
@@ -346,7 +348,7 @@ export default class JanEngineManagementExtension extends EngineManagementExtens
       events.emit(EngineEvent.OnEngineUpdate, {})
       await Promise.all(
         DEFAULT_REMOTE_MODELS.map((data: Model) =>
-          this.addRemoteModel(data).catch(() => {})
+          this.addRemoteModel(data).catch(() => { })
         )
       )
       events.emit(ModelEvent.OnModelsUpdate, { fetch: true })
diff --git a/extensions/llamacpp-extension/src/index.ts b/extensions/llamacpp-extension/src/index.ts
index 92ddf6b3b..327e55c0e 100644
--- a/extensions/llamacpp-extension/src/index.ts
+++ b/extensions/llamacpp-extension/src/index.ts
@@ -23,7 +23,7 @@ import {
 } from '@janhq/core'
 
 import { invoke } from '@tauri-apps/api/core'
-import { createHmac } from 'crypto'
+// import { createHmac } from 'crypto'
 
 type LlamacppConfig = {
   n_gpu_layers: number;
@@ -131,8 +131,9 @@ export default class llamacpp_extension extends AIEngine {
   }
 
   private generateApiKey(modelId: string): string {
-    const hash = createHmac('sha256', this.apiSecret).update(modelId).digest("base64")
-    return hash
+    return ''
+    // const hash = createHmac('sha256', this.apiSecret).update(modelId).digest("base64")
+    // return hash
   }
 
   // Implement the required LocalProvider interface methods
diff --git a/extensions/model-extension/src/index.ts b/extensions/model-extension/src/index.ts
index 669051114..3f2f06ff2 100644
--- a/extensions/model-extension/src/index.ts
+++ b/extensions/model-extension/src/index.ts
@@ -46,8 +46,8 @@ export default class JanModelExtension extends ModelExtension {
       prefixUrl: CORTEX_API_URL,
       headers: apiKey
         ? {
-            Authorization: `Bearer ${apiKey}`,
-          }
+          Authorization: `Bearer ${apiKey}`,
+        }
         : {},
       retry: 10,
     })
@@ -87,7 +87,7 @@ export default class JanModelExtension extends ModelExtension {
    * Called when the extension is unloaded.
    * @override
    */
-  async onUnload() {}
+  async onUnload() { }
 
   // BEGIN: - Public API
   /**
@@ -192,12 +192,12 @@ export default class JanModelExtension extends ModelExtension {
             model.sources?.[0]?.url.startsWith('http') ||
               !(await fs.existsSync(model.sources?.[0]?.url))
               ? await joinPath([
-                  await dirName(model.file_path),
-                  model.sources?.[0]?.filename ??
-                    model.settings?.llama_model_path ??
-                    model.sources?.[0]?.url.split('/').pop() ??
-                    model.id,
-                ]) // Copied models
+                await dirName(model.file_path),
+                model.sources?.[0]?.filename ??
+                model.settings?.llama_model_path ??
+                model.sources?.[0]?.url.split('/').pop() ??
+                model.id,
+              ]) // Copied models
               : model.sources?.[0]?.url, // Symlink models,
             model.name
           )
@@ -288,6 +288,7 @@ export default class JanModelExtension extends ModelExtension {
    * @param model
    */
   async getSources(): Promise<ModelSource[]> {
+    return []
     const sources = await this.apiInstance()
       .then((api) => api.get('v1/models/sources').json<Data<ModelSource>>())
       .then((e) => (typeof e === 'object' ? (e.data as ModelSource[]) : []))
@@ -304,6 +305,7 @@ export default class JanModelExtension extends ModelExtension {
    * @param model
    */
   async addSource(source: string): Promise<any> {
+    return
     return this.apiInstance().then((api) =>
       api.post('v1/models/sources', {
         json: {
@@ -353,6 +355,7 @@ export default class JanModelExtension extends ModelExtension {
    * @returns
    */
   async fetchModels(): Promise<Model[]> {
+    return []
     return this.apiInstance()
       .then((api) => api.get('v1/models?limit=-1').json<Data<Model>>())
       .then((e) =>
@@ -393,7 +396,7 @@ export default class JanModelExtension extends ModelExtension {
     [key: string]: any
   }): Promise<void> {
     return this.apiInstance()
-      .then((api) => api.patch('v1/configs', { json: body }).then(() => {}))
+      .then((api) => api.patch('v1/configs', { json: body }).then(() => { }))
       .catch((e) => console.debug(e))
   }
 
@@ -401,6 +404,7 @@ export default class JanModelExtension extends ModelExtension {
    * Fetch models from cortex.so
    */
   fetchModelsHub = async () => {
+    return
     const models = await this.fetchModels()
 
     defaultModelSources.forEach((model) => {
diff --git a/src-tauri/src/core/utils/extensions/inference_llamacpp_extension/server.rs b/src-tauri/src/core/utils/extensions/inference_llamacpp_extension/server.rs
index c223670c6..2f520b314 100644
--- a/src-tauri/src/core/utils/extensions/inference_llamacpp_extension/server.rs
+++ b/src-tauri/src/core/utils/extensions/inference_llamacpp_extension/server.rs
@@ -87,7 +87,7 @@ pub async fn load_llama_model(
     let mut command = Command::new(server_path);
 
     let model_path = args[2].replace("-m", "");
-    let api_key = args[1].replace("--api-key", "")
+    let api_key = args[1].replace("--api-key", "");
     command.args(args);
 
     // Optional: Redirect stdio if needed (e.g., for logging within Jan)