[eysi]

Garden (https://docs.garden.io/basics/how-garden-works and https://garden.io/) might actually be a good fit. Some of our current users (I'm affiliated) actually use Garden for just the use case you're describing.

But to your point, abstractions are hard, and we've tried to design Garden such that it takes care of the _what_ and _when_ but allows the users to decide the _how_.