Update app.py

app.py

@@ -254,7 +254,7 @@ def build_demo() -> gr.Blocks:
 def main() -> None:
     demo = build_demo()
     demo.queue(default_concurrency_limit=2)
-    demo.launch(server_name="127.0.0.1", server_port=int(os.getenv("PORT", "7860")))
+    demo.launch(server_name="0.0.0.0", server_port=int(os.getenv("PORT", "7860")))
 
 
 if __name__ == "__main__":