I did not mention Amethyst despite liking what it does because it is what I'd call "begrudgingly configurable." It will let you configure it, but it would rather you didn't.

The trade-off is that yabai is instead annoyingly configurable, and its set of sane defaults is just okay. The only way I've found to mitigate this is by browsing yabairc/skhdrc files on github. I steal whatever looks good, and I keep it if it works well for me.