How I Built My Perfect Linux SteamOS Machine

Note I wrote this post by hand. An AI helped me review it, tighten the writing and fact-check the technical parts. The build, the choices and the opinions are all mine. TL;DR # I already have a Linux workstation for work, this is something else: a small, silent Mini-ITX machine that lives under the TV, boots straight into Steam and behaves like a console. No desktop, no terminal, just a controller…