Osprey is a peer-to-peer enabled content distribution system. A metadata management system for software and document collections enables local and distributed searching of materials. Items are available for download directly via URL or indirectly via the BitTorrent peer-to-peer protocol.
Included in the main Osprey package are the web application and a standalone C++ BitTorrent tracker. The Osprey Permaseed is distributed separately.
Web server (tested with Apache)
PHP >= 4.3.2
MySQL >= 4
Word of caution:
The Osprey project is in an alpha release status and is meant for developers or engineers, not for casual users. Most of the core functionality works (more or less). However, one should expect significant bugs and the absence of several key features.