I've used most macOS tiling/workspace tools (AeroSpace, yabai, FlashSpace, amethyst, rift, OmniWM). All I wanted was to not turn off the SIP and it was a tiling tool by workspace. So I created Tatami.It's written in Swift + TCA, and it's still pretty early on, but it has all the features for the environment I want.
I'm very inspired by yabai and flashspace. Thank you for both projects.