First of all, awesome. I have used emacs anywhere and a few Neovim equivalents in the past, but I’ve always found it just a tiny bit too slow, even with nvim running already as a server. So superb work and I’m happy it works for you. I just wanted to mention another similar (in spirit) tool called kindavim, from the same developer that makes wooshy, both incredible macOS tools. He really knows the accessibility api very well.
I’ll give this a shot.