T2 is a flexible open source System Development Environment or Distribution Build Kit. T2 allows the creation of custom distributions with bleeding edge technology. Currently the Linux kernel is normally used, but there are plans to expand to Hurd, OpenDarwin and OpenBSD, and more. T2 started as a community driven fork from the ROCK Linux Project with the aim of creating a decentralized development and clean a framework for spin-off projects and customized distributions. Live CD 2.2.0-beta was released May 21, 2005. The T-Resc target provides a tiny rescue system based on uClibC and K-drive Xvesa/Xfb for minimal size, released January 20, 2007. T2 8.0 "Phoenix" was released July 14, 2010.