Hackcenter project: i3
i3 is a tiling window manager, that means it configures your windows to use the whole available screen space. It was written from scratch with focus on clear and well-documented code. Additionally, a lot of documentation like the User’s Guide or a Hacking Howto is available. i3 is fast, easy to use and configure, features full unicode and decent multi-monitor support.
Two of the core developers are traditionally attending the Chaos Communication Congress and are in the hackcenter (the 4-person table in the middle of the hackcenter, watch out for the i3 poster), ready to answer your questions, …