@gandlaf21 is the main mantainer. I can tell you that there are some documentation issues between the website and the code. What I'm doing for know is just inspecting the source directly.
Yeah, docs on a website are almost always out of date. I been looking at the code too Would be good to have a very simple reference CLJ implementation that does nothing but the very basic things using cashu-ts
https://cashubtc.github.io/cashu-ts/docs/staging/ for the latest RC try this doc