Phoronix article: https://www.phoronix.com/news/Steam-Machines-Frame-2026
Also listed here: https://store.steampowered.com/sale/hardware
Valve has already sent support for the new Steam Controller upstream: https://www.phoronix.com/news/New-Steam-Controller-SDL
Frankly it all three are logical next steps. With the way windows is going, valve needs to decouple it’s store from the windows dependency. The deck was the tester, now we get the not so cheep next generation