Representatives of Valve have confirmed plans to allow the use of Steam OS operating systems on game consoles other than the Steam Deck. The first alternative devices to receive support in Steam OS are mentioned asus rog Ally consoles, which were initially running Windows 11. Recently, in a note regarding the beta version of Steamos 3.6.9, input support for additional buttons used in the ROG ALLY device and the ASUS ROG RAIKIRI PRO gaming controller was announced.
Valve has also confirmed that they are not abandoning the idea of creating an official Steam OS for PCs. While these assemblies are not yet complete, work on their development is ongoing. The plans to enable installation on other systems involve providing dual-booting capabilities, allowing users to run Steam OS on systems already running Windows.
The Steam OS operating system, based on Arch Linux, utilizes the Gamescope composite server to enhance the startup process of the Wayland protocol. It only allows RW access to the root FS, employs an atomic mechanism for updates, supports Flatpak packages, uses the PipEwire multimedia server, and offers two interface operating modes (Steam shell and KDE Plasma desktop). Official releases of Steam OS are currently limited to Steam Deck devices, but enthusiasts have developed unofficial builds like holoiso, which are adapted for installation on regular computers.