GPUI from comments? I meant to try GPUI, but backed off after an announcement pending its maintenance would be in question (?) a few months ago, and Zed broadly ending up being a false messiah, for my uses. (Not on the tier of JetBrains IDEs, a bug with a long thread they closed which (still I believe?) causes it to open cached versions of files, then clobber edits made since the cache, e.g. by other programs. I.e. the sort of bug which renders software too dangerous to use. I will not switch to a GUI framework from a group that ignores bugs of that severity reported by many people)