I used to be annoyed by the push from yaml to ui. I wanted my config to be version controlled, and I wanted the power that I though text based config gave me.

However, it turns out it's really annoying to use text based config for most things. Primarily because integrations can't edit your config, so you have to do a lot more manual migration of config. Yaml also doesn't have any proper ide support, so it's an annoying loop of restarting the app and staring at logs looking for typos.

And finally the version control was useless because so much of what I wanted to keep was state, which can't be in config.

I've recently realised that I only actually needed the complex rules and UI to be in code. And they still are: now through the ui with instant validation.