add name is main condition

app.py

@@ -276,7 +276,7 @@ outro_text ="""
  - [] gradio examples
  - [] use GPU if available, respect memory restrictions.
  - [x] stream model generation (maybe in a new window?) - janky solution and only sometimes hangs up
- - [] 2nd iFrame needs a lot of fixing (I am not a web developer, need help)
+ - [] 2nd iFrame needs a lot of fixing (I am not a web developer, need help) BUG:background is white, so colors are wrong. Shadertoy uses black background (or we ignore alpha).
  - [] (optional) filtering the dataset by license?
 
 ### Notes:
@@ -650,5 +650,7 @@ with gr.Blocks() as site:
     )
     sample_code.change(fn=list_dropdown, inputs=[sample_code], outputs=[funcs, func_dropdown]).then(
         fn=make_iframe, inputs=[sample_code], outputs=[our_embed])
-site.queue()
-site.launch()
+
+if __name__ == "__main__": #works on huggingface?
+    site.queue()
+    site.launch()