[regiswilson]

> that can't be easily solved by docker-compose?

Docker-compose only runs on my (your) laptop. What if you want to share that with someone else? I have to git stash, checkout a branch, tell someone else to do all that... I think you're on the right idea: it's "easy" to do with existing tooling, but there's a big gap between it's easy to do and then go and spend the time to do it.