alt Hacker NewsYou can't build a machine which is as powerful, small, quiet, and cheap, nor can you take for granted that a machine you build can have a controller that can wake it from sleep, or which has HDMI-CEC (both are possible, but take extra work or hardware). You can rather easily build a machine with multiple of those attributes, but you'll have to pick ones to sacrifice in the name of the others.
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esseph • today at 5:54 PM
The only thing you might lose by building your own and running SteamOS is HDMI-CEC.
The steam controller would work just fine.
Valve supports SteamOS on other hardware.
I like the SteamDeck I have, but it doesn't do HDMI-CEC or controller wake from sleep today. Valve needs to prove the Steam Machine doesn't fail here.