When we started on Zed the Rust UI framework space was much younger. In absence of a mature solution that met our exact needs, the simplest path for us was to build it ourselves. We're too far into things now to change at this point.
Fair enough. Hopefully when you're ready to work on accessibility in your UI framework, AccessKit [1] will be ready. I'm hoping to have usable Windows and Mac implementations by the end of this year.
