Thanks. I've also seen a derivative called Toshy. They both appear to be surprisingly invasive.

I want something like Sublime Text's keybindings, where I can just iterate over all of KDE's system defaults and ask Gemini to convert them to their Mac equivalents. Can deal with individual applications separately, but since basically the only things I use are Chrome, Ghostty, Sublime, and the KDE shell, it seems like it ought to be pretty straightforward.