PC makers like Lenovo, Asus, and MSI have all opted for Windows-based handhelds so far, but as consumer patience with Windows on tiny screens wears thin and Microsoft’s progress in improving the experience is slow, it seems like OEMs are looking for a better alternative.

SteamOS is a Linux-based operating system that’s designed for gaming. It includes Valve’s Proton software that allows you to run many Windows games on Linux and recent versions of the operating system include a user interface that’s designed to be navigated on handheld devices with small screens and game controllers.

Valve may provide third-party companies like Lenovo with versions of SteamOS for their devices. Lenovo Legion Go S leak suggests a black model with a dedicated Steam logo button could come with SteamOS.