duplicate thread
https://gbatemp.net/threads/is-it-possible-to-turn-the-switch-into-a-steambox.509234/
the tl;dr is steam link is open source... for android... so it needs to be ported before anything
HOWEVER, for the meantime if you have a Nvidia card moonlight is being ported and word is it's running, albeit 3-4 frames a second due to some moonlight dependencies not being ported yet but it'll get to the point of working as good as a Nvidia shield portable hopefully. (I couldn't get the precompiled app to run on my switch usually would crash when it gives me the Nvidia game stream code)