Things I Want in Common Lisp by Robert Smith.
Video demo of cl-notebook by lnaimathi. By the same author: [T]he primary endeavor of every programmer is twofold: To understand, and to be understood, which demonstrates generating code from a visual diagram.
Looking to start a band? Stumped on a name? See this twitter thread for inspiration.
simple-search is a "smaller alternative to Montezuma" that "allows you to index documents you have stored in-memory and query them in various ways." Looks good. From Andrew Lyon.
It is not hard to read Lisp code, by Jisang Yoo.
mathkit is "a purely math-related utility kit, providing functions which can be useful for games, 3D, and GL in general" by Ryan Pavlik.