I just don’t see the value prop to use Vercel for SaaS apps. Using a running server for those works better, cheaper, and faster. For consumer-facing storefronts, Vercel is a no-brainer though.
There's also issues with complexity even if the solutions get figured out. What are you getting in return? Serverless is great IMO when it's the simplest solution to a problem, ex: "I only have a front end but I really need a simple API action that daisy-chains a few API calls".
I definitely understand this. One step at a time, but I think we can move incrementally to a workflow that is much better that what we have today, especially around the DB schema migrations. There's also no reason for this to not work for RDBMS, in fact we're based on Postgres ourselves.