I was thinking DBaaS as well, which is the part that's usually under-emphasized. NoSQL for specific tasks and (sharded if needed) relational with stored procedures for anything complex. When you think of Postgres as its own (heavily optimized) server, it changes the game. For most apps, at that point you just need a passthrough layer exposing endpoints, which is usually a dead simple nodejs app behind a balancer. The rest of the heavy logic is then offloaded to the client. This is why full-stack makes sense now more than ever. It's getting so easy there's almost no excuse anymore.