[phtrivier]

I understand Haiku (née BeOS) has UI concept at the OS level, which should probably simplify many things.

For UI, you also need to extend programming languages to add so "nested structure with logic" as first class (which is the real value of jsx, and could, I suppose, be trivially done in lisp ?)

I would love to have a Rust + Nested trees syntax + native UI lib that look decent on all system.

But it's never going to happen for now obvious reason, so, never mind.