Pretty awesome game, very impressive 😀
I don’t know if you actually explained how it works somewhere, but I actually figured it out myself. Once I figured out the right keywords, the actual way to implement it was not too difficult to found (the Reddit post that explained the settings was from someone I actually posted a Github PR to recently actually).
Once you know it exists, it’s actually straight forward (more or less) to think it’s a functionality you could use to make a game ^^
There is definitively a lot of puzzle ideas that come to mind ^^
That must have been difficult to implement though, good job making it work in 2/3 days.