An anonymous reader writes that, as promised
, "Valve has put out their first SteamOS Linux operating system beta. SteamOS 1.0 'Alchemist' Beta is forked from Debian Wheezy and features its own graphics compositor along with other changes. Right now SteamOS 1.0 is only compatible with NVIDIA graphics cards and uses NVIDIA's closed-source Linux driver. SteamOS can be downloaded from here, but the server seems to be offline under the pressure."