Jovian
“Relating to [...] Jupiter or the class of [...] which Jupiter belongs.”
By jove! What a weird name!
This is a "jupiter-compatible" set of packages and configurations for NixOS.
What's Jupiter?
There's a disambiguation page that won't help you.
But really?
I'm not really sure. I don't know exactly what it's the codename for. It is either the codename for the Steam Deck, or the codename for the new Steam OS for the Steam Deck. Things get awfully murky when you realize that Neptune's also a thing, and it's unclear really from the outside, and quick searches don't provide conclusive evidence. But to the best of my knowledge, Jupiter is the OS for us.
So it's a NixOS configuration that gives me the Steam Deck user experience?
No.
But... Uh, what?
It might become. For now it's mainly concerned in packaging the basic components such that all the hardware is fully useful.
Contributions welcome for the other softwarey bits of "Jupiter".