WESP is a collection of subtle scripts and programs written in several languages (C, /bin/sh, (g)awk, ruby, icon) that breaths a new life into the WEB system for literate programming by Donald Knuth (and CWEB by Knuth/Sylvio Levy).
Simple wiki requiring perl 5.003 or higher. One script does it all. Drop it in cgi-bin, adjust the path to where you want to have your pages stored and go.
Runs under httpi, apache, whatever you have. Drop it in. Use it. No perl modules required.