I dont have a steam deck, but there seems to be some relevant info in this thread:
https://lemmy.world/post/28889844
Tl:Dr Any keyboard will work. The part that takes setup is installing a program that can rebind the macro keys
I sent Lutris a DM on Patreon. I’ve been a patron for almost as long as it has existed. I’d really hate to stop supporting them but if they continue to tolerate racism in their official Discord I will have no choice.
Anyone else who is a patron should consider messaging the project as well.
Edit: Seems like the offending comments have been deleted, which seems appropriate. Hopefully that’s the end of it