For Emacs, making an entirely separate configuration and reloading the editor every time I change keyboards simply will not do. My init.el is over 1200 lines long vs. a mere 220 lines of i3 config, not counting my kakoune.el package which bakes in many "hjkl" bindings. Moreover, I tweak my setup constantly, and it would be a nightmare to keep two versions of it synchronized. Fortunately, Emacs is Emacs, and is therefore infinitely malleable in the hands of anyone who can write elisp. I'm not the world's foremost elisp expert by any stretch of the imagination, but if anything, this is a good opportunity to write something that's not just a (use-package) declaration.