This feels like something I want but it's hard to be sure. An example use case in the Introduction would be helpful

MacOS user here. So many times over the last decade I’ve journeyed to get terminal Emacs working with my litany of weird keybindings. But I always end up back in the GUI.

I switched to Colemak about 15 years ago and thought it would be a good idea to rethink all my Emacs keybindings, since my muscle memory was shot in that transition. (I don’t recommend this in hindsight.)

I have yet to get a terminal working fully like the GUI. Partly because I refuse to install a third-party key mapper.

Anyway, just tried this and Alacritty. It’s the closest I’ve got to fully working. My guess is another hour of tweaking and I could maybe get all the way there.

My Emacs config heavily used the Hyper key: although I'm not japanese I'm using japanese keyboards (I've got several HHKB Pro JP, since years and years and years) and they've got more modifiers than regular US/EU keyboards. So I remapped the Henkan/Muhenkan (or whatever modifier whose japanese name I forgot) thinggies to be Hyper.

I can't even begin to imagine how complicated it'd be to get that working in "emacs -nw" (Emacs No Window, aka terminal)...

Thankfully I don't have no real need for terminal Emacs.

[1] Space-cadet keyboard with "Hyper" keys and, overall, really a lot of modifier keys: https://en.wikipedia.org/wiki/Space-cadet_keyboard#/media/Fi...