Well, that’s a confusing name to give your project.

I guess it follows the tradition where an ancient Lisp dialect was called NIL (which is how the false value was denoted back then): https://en.wikipedia.org/wiki/NIL_(programming_language)

heh, it caught me out...

That's a confusing name choice, I expected this to be some kind of scheme implementation based on the existing language F#

I really like that it tries to be extremely minimal, but was surprised to read it didn't support eval/apply at the lowest level.

The C source code in the GitHub looks... Interesting. At least the "fixpoint" directory.