I don't necessarilly agree with his decision to build all images by hand as opposed to using those available on Dockerhub, however it's a personal choice and I

I don't necessarilly agree with his decision to build all images by hand as opposed to using those available on Dockerhub, however it's a personal choice and I respect it. Given that he's using docker-compose, I wonder why he's chosen to host his images in a repository at all, instead of just specifying the Dockerfile in the yaml and having them locally.