There's already many solutions for *dedicated* chess boards with electronic outputs -- they're common in major tournaments. (I.e. capacitive sensors under the squares). The point of OP's solution (as I understand it) is anyone can use their own, ordinary boards for this, with no purchase, using standard cameras.

I think it's awesome.

(I think magnetized self-moving pieces exist too, but they're not very impressive. IIRC it's just one 2-dof magnet under the board. But that's slow and more for show than utility. It'd be a handicap for blitz).