If you haven’t seen it before, here is the world’s tiniest (well, maybe) Scheme interpreter, SIOD (it was originally written as a lark, and called Scheme in One Day). It used to be a lot smaller, without things like sockets or MD5 (like Windows, or to be fair, Linux, things have a tendency to grow. “Add a little to a little and you have a lot.”)

You can get some serious work done using SIOD.

(Two really good Scheme repositories are at and

This entry was posted in Uncategorized. Bookmark the permalink.