Originally written for Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis.
Monitorix is a free, open source, lightweight system monitoring tool designed to monitor as many services and system resources as possible.
RainLoop webmail application has a modern user interface to handle large number of email accounts without the need of any database connectivity
The state-of-the-art publishing and blogging platform with a focus on aesthetics, web standards, and usability.
Subsonic is a web-based media streamer, providing ubiquitous access to your music. Use it to share your music with friends, or to listen to music while at work.
Amahi DLNA is a high quality DLNA server, an Amahi-customized port of MiniDLNA (aka ReadyDLNA), which aims to be fully compliant with all DLNA/UPnP-AV clients.