I don't know if they bought this stuff from the Broad Group[1] in China but this sort of prefab is catching on. They were never successful at building their "sky city"[2] which got them a lot of publicity (perhaps the intent). If it was possible to build it suggests some interesting things like a single sky city would be possible to house the entire bay area homeless population, assuming you could fill each living space to its capacity, plus a hospital, plus mental health and drug treatment centers, plus kitchens and shops in one building. It starts looking like Silverberg's arcologies.

But I haven't seen any reports on how maintainable these structures are once built. I presume that Berkeley will be doing that as part of their program.

[1] https://www.nextbigfuture.com/2016/09/broad-group-usa-target...

[2] https://www.youtube.com/watch?v=8GrU_2UK0-c originally proposed in 2012 (https://newatlas.com/broad-sky-city-one/22983/)