A PostgreSQL server on an NVMe can handle several _million_ simple requests per second. This is bonkers.

Do you think you can hit these load levels? For compute, a 64-core CPU can saturate a 10G network with simple template rendering. If the code is written in something reasonably fast (Go, Rust, Java).

Of course, if you're on a scale of Amazon or Stripe, you'll need more than that.