A related Mac feature is that you can remap keys at the OS level so that the mapping works across any keyboard or app: https://developer.apple.com/library/arch

A related Mac feature is that you can remap keys at the OS level so that the mapping works across any keyboard or app: https://developer.apple.com/library/archive/technotes/tn2450/_index.html https://developer.apple.com/library/archive/technotes/tn2450... I have Caps Lock remapped to Backspace, even when I don't have a programmable keyboard plugged in. I know Caps to Esc is also very common for Vim users, but I find I make typos a lot more often than I use Vim. Using launchd you can even do this before login so that it works in the login window.