2. How would focus system work with compose?

I guess the correct answer for now is TBD

focus is difficult to get right in declarative frameworks because it is inherently non-local state, but still can’t be represented as global state without handling some corner cases improperly. we have thrown around a few api designs for this but are still unsure where we will end up. if you have any ideas, let us know 😉

isn't focus global though?

all of its parents, but also it gets more complicated when you consider multiple screens and multiple input devices