I like the power that we see with cheap commodity hardware, but we mustn't forget that it's crap. He talks about Litestream as a continuous backup but doesn't get into how long it takes to bring up a hot spare and whether he's automated that. I'm glad to see Litestream has synchronous replication on their roadmap, but in the meantime writes can be irretrievably lost and I don't know whether transaction boundaries are preserved.