A programming language and an implementation of that language
The Racket repository
Linux GPIB Driver package (source)
Personal and small-business finance manager
Snd is a sound editor
A tiny Scheme interpreter for embedding in programs.
Personal Package Manager
R7RS Scheme scripting engine
Collection of scripts for transfinite ordinals computations
Electromagnetic Analysis Software
interpreter for a concatenative language
Scheme Interpreter implemented in Java
Readable Lisp/S-expressions with infix, functions, and indentation
track time spent, keep a diary, to-do list, generate reports, bills