RPL/2 (Reverse Polish Lisp/2) is a langage derived from the RPL made by Hewlett-Packard for its HP-28S. It has some extensions (preprocessor, compilated libraries, new functions), a TeX output, and can draw graphics.
A TCP gateway daemon for the X10 CM15A, CM15Pro, and CM19A home automation controllers.
A backend for the Core Five file manager.