> It has even deployment instructions that don't tell you when your code will run

You're referring to this? https://docs.wasmer.io/edge/quickstart/http-server Personally, I found it pretty instructive.

The current regions are us-east, us-west, and eu-central: https://docs.wasmer.io/edge/architecture

> but there's no mention of database or filesystem.

The docs do point out that stateful workloads are in their plans.