There is also s7 which can be embedded in C applications seamlessly.

https://ccrma.stanford.edu/software/snd/snd/s7.html

> It does not have syntax-rules or any of its friends

This is still super interesting of course, but why use lisp at this point and not lua or python? I mean this earnestly as a daily scheme user. Macros are 90% of what makes lisp interesting.

Thanks for that link. Good to have an (another?) embed-able Scheme interpreter.