Humm and Strumm is a project to create a high-performance, concurrent 3D video game engine in modern C++.
Nulloy is a cross-platform music player with a waveform seek bar, skins, support for many audio formats (MP3, FLAC, OGG, WMA, AIFF, etc.), tags, and cover art.
A Web server with an in-built data store.
A Nagios plug-in and configuration library for Python.