That's so cool. The guy made the repo private but I hope he makes it public again. It would be really interesting to see the code behind this. And looking at the other repos, I would bet its written in C++
I cloned a copy of the repo a week ago; might be possible to find a fork? (I didn't fork it, though.) It's a pretty standard cpp codebase: might be windows-only, but I haven't gotten around to building it yet.
Although I find strange the change of heart, this is the reason the author made the repo private, according to his pinned comment in the video:
> UPDATE: I've received way more interest in this project and the codebase than I anticipated and I've made it temporarily closed-source. I may release it publicly again but I really want to make sure that my work isn't used without crediting me. Thanks for understanding bros!