Why did they focus on that particular graphics card and not others, and not common laptops used by developers, or something like that?
That's a pretty popular budget friendly GPU people use for local AI, it actually seems like an excellent choice IMHO.
The repo is very vibecoded (Claude is co-author, READMEs are obviously AI).
This is the output of someone with a 3090 who pointed Claude Code at some research papers and possibly the upstream implementations of these techniques and then posted the output as original work.