This project is the website for the Vim course at Sofia University: https://vim-fmi.bg. It's all in Bulgarian, so it's probably a bit of a niche setup.
The vast majority of the code has been borrowed from https://github.com/skanev/evans, which I've been using for a Rust course (https://fmi.rust-lang.bg) under my own fork.
The exercise setup has been taken from https://github.com/igrigorik/vimgolf, the excellent site and client for https://vimgolf.com.