FYI you can remap capslock in the built-in MacOS keyboard settings. Click Keyboard Shortcuts and then go to Modifier Keys.

It's just a hardwired list of targets, and doesn't support the fun combination of bucky bits that I remap capslock to (in lieu of an actual hyper key, which macOS has no concept of). Also, when I tap capslock as opposed to holding it, it sends an ESC, which I'm pretty sure I would need Karabiner for.