declarative-ui

Something like this: https://i.imgur.com/fZETnkc.png

https://developer.android.com/jetpack/compose/navigation

https://doc.rust-lang.org/cargo/reference/features.html

In the "none" case, the user would supply their own rendering surface and events (e.g. when embedding an iOS app)

Right now features are produced without adding much documentation, it was ok while API changed frequently, we are reaching the point of stability and we should enforce some level of documentation and book coverage to improve users experience.
This would require a research about documentation coverage tools that work with GH actions.