[liancheng]

Hey Will, thanks for building Textual! I'm using it in a simple side project and really enjoyed using Textual. However, I do feel that the magic methods used in the message passing system and reactive system are questionable, especially in large projects.

You recently renamed the widget "Checkbox" to "Switch" in a newer version. I easily did a rename in my single file app. But imagine that someone built an extremely complicated TUI app containing dozens of files, you can easily miss a rename, which won't be caught by any static checking tools and only result in runtime error.

I had fun building simple apps using Textual, but I probably won't use it to build any complicated TUI apps. I feel that IDE/static checking tools unfriendly magic may directly hurt Textual adoption because it doesn't work with automated tasks like refactoring, and that prevents people from using it in large projects.