Update app.py

app.py

@@ -58,4 +58,8 @@ with demo:
     )
 
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch(
+    server_name="0.0.0.0",  # allow external access
+    server_port=7860,        # HF default
+    show_error=True
+)