Amethyst

Amethyst is a tiling window manager for MacOS which exists inside the normal MacOS window manager.

This means that it doesn't require System Integrity Protection to be disabled, unlike alternatives like yabai.

Configuration

Amethyst's config is stored at ~/.amethyst.yml or ~/.config/amethyst/amethyst.yml.

An example config can be found on the Amethyst repo

Or there's a set of configuration keys on the repo too.