This is fantastic news. I use Jekyll for many things, but was getting sick of it not supporting fenced code blocks in Markdown.
So I made the classic mistake and built a Node.js Jekyll clone -- there are a few other static site generators in Node, but none used the exact same file structure as Jekyll (unless I missed some, which is entirely possible).
It now handles most Jekyll sites I've tested, including Mojombo's:
https://github.com/fortes/enfield
or
`npm install -g enfield`
Supports plugins as well. Patches welcome!