if this is as good as it looks, then I hope Apple buys you out and integrates this into macOS. superb idea, something I've wanted for at least several months since I began using a Mac again.
constructive criticism: you don't mention that macOS 12 is required. I have an older Mac which doesn't officially support 12.
(I've been looking for a reason to try out OpenCore and upgrade macOS to the latest version, so I guess I'll give that a go tomorrow so I can try out your app)