https://github.com/msolomon/griddle https://github.com/msolomon/griddle This one is recursive-grid for Hammerspoon users on macOS, and is probably the easiest

https://github.com/msolomon/griddle https://github.com/msolomon/griddle This one is recursive-grid for Hammerspoon users on macOS, and is probably the easiest of the open source implementations to fully customize. (I made it years ago)