block off main

app.py

@@ -200,4 +200,5 @@ with gr.Blocks() as demo:
     viewer.timeline_change(track_current_timeline_and_time, outputs=[current_timeline, current_time])
 
 
-demo.launch(ssr=False, share=True)
+if __name__ == "__main__":
+    demo.launch(ssr=False, share=True)