I found MoonDeck while perusing the Decky plugin store and it’s absolutely awesome. I’ve had Moonlight and Sunshine set up for a while because Steam streaming is very inconsistent between Deck and Linux, but I didn’t use it often because it’s a pain setting up launchers in Sunshine for each individual game. MoonDeck takes the hassle out of that completely, and I find myself streaming GPU-intensive games to my living room much more often nowadays.
I highly recommend it!



So that file can go anywhere you want, but
~/binis a good spot (or~/.binif you like a tidy home folder). You can name it whatever you want, but I’d personally name itsteam.sh. And then in the Buddy settings, use that file as your new Steam binary.It has been a busy few weeks, I haven’t had time to really troubleshoot this further until today.
I have managed to get it a bit further. It now says “failed to connect to hostname”, but Sunshine no longer closes when this occurs.
I have ensured that -moondeckbuddy settings.json contains correct sunshine_apps_filepath, registry_file_override, and steam_binary_override all point to the correct places -steam.sh is executable -in Sunshine -> applications -> command “/home/myname/Applications/MoonDeckBuddy-1.6.1-x86_64.AppImage --exec MoonDeckStream” is pointing to the correct place. I’ve included the “exec MoonDeckStream” but I’m not sure that is correct, still doesn’t work with or without it -Steam Deck says that both GameStream and Buddy are online and paired
I really have no idea what else I could be doing wrong. I don’t think it is a firewall rule or anything since I can get it to stream, just not with the moondeckbuddy.