Chez scheme is still around and is a pretty stellar piece of software. I have found that finding bugs in smaller language implementations is uncommon, but not r

Chez scheme is still around and is a pretty stellar piece of software. I have found that finding bugs in smaller language implementations is uncommon, but not rare. At least once you leave the happy path. I have written well over 100k lines of scheme that runs on chez and I have had zero issues. The documentation is clear with good descriptions of even hairy topics like macro phasing and the module system.