The other reason I don’t trust them is because this repo is 100% AI slop, even for crypto code. He posted it on /r/rust where every comment was highly negative - https://www.reddit.com/r/rust/s/4I4Xc7x7ec. The thread was removed by a moderator with the note:
Please, stop posting articles from kerkour.com.
The blog has been on a downward spiral for years, it's doomed, let it go.