EO is a templates-based, ANSI-C++ compliant evolutionary computation library. It contains classes for any kind of evolutionary computation (specially genetic algorithms) you might come up to. It is component-based, so that if you don't find the class you need in it, it is very easy to subclass existing abstract or concrete class.
Tart stands for "The Automatic Random Tagline", a versatile, fast and feature-rich email signature generator. Tart features include random taglines, optional daemon functionality, display of current date, custom layout of signature, and "special date" tagline text. The command line syntax is simple and well explained. Linux tart is designed to be run as a stand-alone daemon, from crontab, or in your login script.
The X Binary Package System (in short XBPS) is a binary package system designed and implemented from scratch. Its goal is to be fast, easy to use, bug-free, featureful, and portable as much as possible. There is a well documented API provided by the XBPS Library that is the basis for its frontends, to handle binary packages and repositories.