Update app.py

app.py

@@ -35,7 +35,7 @@ def install_packages():
     run_command("make clean")
     
     # Reinstall the package
-    run_command("pip install -e .")
+    run_command('CMAKE_ARGS="-DGGML_CUDA=on" pip install -e .')
 
     # Install llama-cpp-agent
     run_command("pip install llama-cpp-agent")