I would imagine that its a fairly limited scenario, not really something for the devs to work on so they can expand the playerbase.
Like shaman said, this really isn't just "Lol just work on it," its a bit more "lets jury rig this decade old game engine to work in an environment that was made for more modern game engines."
Though it is fair to say that you can
stream the game over steam to other pc's/systems in the house, so perhaps it wouldn't be that hard, the main problem might be more with nvidia than zero-k at that point however. (https://www.nvidia.com/en-us/geforce/forums/discover/255981/request-a-new-game/) Even if this is 4 years old, they seem to be more orientated towards a more curated
library, so the zero-k devs will likely not have a say in the matter.