CL-SDL is a library of foreign function interfaces
to SDL and OpenGL for Common Lisp programs. It
aims to be extremely portable, fast, and flexible.
GRT is a Common Lisp raytracing system. It is
being developed on CMUCL, but should be easy to
port to other Common Lisp implementations as well.
A comprehensive tutorial and reference on shell scripting using Bash.
An app to track your trails.