Gridfinity iFIXIT Mako Driver 64-bit Kit Adaptor Tray

Essentially a “shoe" that adapts your existing Mako Driver 64-bit kit to Gridfinity.  It made more sense to me to keep using the existing layout than design a new thing from scratch.  You can leave the lid on, but I prefer to stick that to the side of my tool chest so it's out of the way.