MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability.

Hosting git repositories -- Gitolite allows you to setup git hosting on a central server, with very fine-grained access control and many (many!) more powerful features.

simple statistics from the command line

A project for code to create models from existing corpora and distribute models.

Tools to make monitoring easier, more thorough, and less painful.