I doubt that there would be enough contributors for it to ever catch on. But I did design this with expandability in mind (it’s basically a miniaturized Gridfinity knock-off). Maybe I will publish the specs and/or a tile template…
The tiles do affect the ball movement slightly but the tolerances are small enough to be acceptable for what this is - a desktop toy. I’ve been playing with this at work all week and the real fun is in building. It has definitely been a huge hit at my office!