I’ve been trying this for a few hours and i’d say it’s working almost at 90%
We could try to improve performance and maybe could it be included in next releases?
Appimage works like a charm.
Once downloaded copy the file Moonlight-3.1.1-x86_64.AppImage to roms/Moonlight, give it a+x permissions in console
chmod a+x Moonlight-3.1.1-x86_64.AppImage
And you can execute it right from file explorer (F1 key).
It loads and shows some error about no h264 codec available.
It will try to find for computers in your network with streamplay enabled.
So now you have to go to Geforce Experience and enable gamestream (just tested with latest version installed) from settings, SHIELD > GAMESTREAM (click on the button).
Go to batocera and you’ll see a 4 digit pin that you have to enter in your computer.
It will show your games library and Steam.
Been playing dark souls 3 and dragon ball fighther z and there’s some framerate and sound issues, but it works quite well. Maybe adding h264/h265 hardware support could help? (oh, well, my batocera computer is wired on gigabit lan i’m my pc is connected to wireless ac, maybe with both cabled it works at 100%).