So just a small update, this project got a bit out of hand — I had some problems with serialoscd on my High Sierra where it would stop sending messages if it got flooded by some app (like meadowsphysics), so I kinda wrote my own thing in nodejs that simulates serialoscd and is mext-compatible (only with 8x8 grids), I plan on cleaning everything up, setting up a README and pushing it to github first, and then writing blog post once I have more time.