rcmd is a great tool that lets you switch apps using the right command key and the first letter of an app’s name, but I found right command to be a bit out of the way to hit when my right hand was on the mouse. I did a bit of research, and found some resources on how to use hidutil to rebind keys, and bound caps lock to right command. Now I have a super useful quick app switcher key that is easy to use and doesn’t punish me for accidentally hitting caps lock! Yay!
I do similar stuff with Karabiner. Back in the touch at days when using vim, it was terrible, so I made Capslock => Escape. So much more ergo that I can’t go back.
I discovered Hyperkey and then mapped Caps to Esc when tapped or Ctrl when held, makes navigating Vim an absolute dream.