So I just dived in to the Rebol cookbook myself, and I came across Rebol 3 implementations of some of the goodies from there that are originally written in Rebol. For example I stumbled upon https://zolk3ri.name/cgit/rebol-cr-auth/ and https://gist.github.com/gchiu/5288312. They are both quite cool. It truly does make me love Rebol even more!