Rebase has returned with updates on innovative projects from GitHub in 2009, highlighting metro, a Python-driven tool for assembling Gentoo Linux releases that promises greater extensibility and organization than its competitor, Gentoo Catalyst. Metro offers easy configuration options and comprehensive wiki articles for custom builds, showcasing the Linux community's vibrancy. New noteworthy projects include irccat, a self-aware Java IRC bot used by Last.fm, which simplifies messaging and custom actions, and a distinctive Vimeo API implementation built on HTTParty and Jeweler, providing a nuanced approach to API access. Additionally, erlfs is an Erlang-based project aiming to create a distributed file system that scales linearly with more computers, though it is still in early development. The Hardcore Forker of the Week features xdev, showcasing the open-source PHP and ActionScript contributions of Joshua Rudd and Charles Mastin, including PHP CMSs and a flexible media player, demonstrating how open-source collaboration can drive prolific work.