The demo is not working

[noklam]

Description

Demo site: https://tornado-async-transformer.vercel.app/ is not working

Context

https://chairnerd.seatgeek.com/refactoring-python-with-libcst/ brought me here. I am interested to see how LibCST can help to write codemod. I appreciate that the blog has been a while and it may be hard to spin up the demo site again. Is there a way that I can run this locally?