[Tecuane]

>I do forget to remap the esc key each time I do this, or the name of the thingie that helps you do that

I don't suppose it's Karabiner[1], is it? This is the one I'm most familiar with, as it's been around under a few names for a very long time.

If so, this is in `brew cask`[2], which I am assuming is somewhere in your script's mix.

1. https://pqrs.org/osx/karabiner/

2. https://github.com/Homebrew/homebrew-cask/blob/master/Casks/...

[princekolt]

I'm not sure to which key you want to remap esc to, but if it is to any of Command, Option, Control, fn or Caps Lock, you can do that from the Keyboard Preferences: https://i.imgur.com/whzlIW9.png

[lindskogen]

OS X by default lets you rebind the capslock key to esc :)