I've got a Steam Deck and have tried leaving Placid Plastic Duck Simulator up and running.

It seems like this would be really cool to do the same thing with NeuraQuarium but it is not on Steam (yet) Any plans to put it up on Steam?

Or would it be easier to just install the Itch app on the Deck or just plop the game in my home folder somewhere?

I've got a buddy with a steam deck, I'll see if I can get him to try out the Linux build on it!

As for a full steam release -- it's one of those things that's been on the "to do, once all the other features I want are done" list -- except "all the other features" is constantly growing.