Update app.py

app.py

@@ -1,4 +1,4 @@
-from frontend.webui.realtime_ui import start_realtime_text_to_image
+from backend.api.web import start_web_server
 
 print("Starting HF demo text to image")
-start_realtime_text_to_image(False)
+start_web_server(8000)