I've been looking for exactly that: a backend thing that's as easy to setup as Netlify is for the frontend. Micro seems to be a Go framework evolved to automatically deploy code to the "cloud", but it seems it'll remain limited to Go backends... I can write Go without problems, but I wanted something that supports other languages as well, specially Java... I think RedHat seems to offer that with OpenShift and Quarkus…
The Dark language itself is not what you’re looking for, and I don’t know if I would trust it in production (it’s still in beta). But the platform makes it extremely quick to get a POC backend working.