Their distribution is called Helios and is based on OmniOS. I think they were supposed to make it more suitable for consumer use / home install at some point - the package repository is public if you want to try to cobble it together on your own.

Actually several docs in their repositories point to https://github.com/oxidecomputer/helios which... doesn't exist??

It does seem derived (rather than based) from OmniOS indeed, so little to do with OpenIndiana (https://news.ycombinator.com/item?id=33341193)

It's still private. I believe this is a case of "just gotta open it," but that takes some work (and I am not sure, I don't know all the details yet, I could be wrong). I have it on my to-do list to try and investigate this and get it done sometime soon, we'll see.

Hmm ok thanks!!

Yes I think a lot of people are very curious to get a peek, especially if they can't afford an actual oxide ;)

Oxide made of ex-joyent (smartos) people, some of which were also ex-sun people (Bryan Cantril for example)