The requirements end up being pretty specific, based on workloads/power draw/supply chain

So, while we could have bought something off the shelf, that would have been suboptimal from a specs perspective. Plus then we'd have to source supply chain etc.

By owning not just the servers but the whole supply chain, we have redundancy at every layer, from the machine, to the parts on site (for failures), to the supply chain (refilling those spare parts/expanding capacity/etc)