[estomagordo]

Great. In 90 minutes I may be able to know what you're talking about.

[estomagordo]

Is it a complete lisp interpreter, written in lisp?

[Globz]

Yes, it uses pmatch behind the scene to match your expr against the evaluator.

https://github.com/webyrd/quines/blob/master/pmatch.scm

I have to agree, this like rank #1 in my book!