Buildah is what the Dockerfile could have been. Instead of using general-purpose shell scripting knowledge to produce images, we ended up with a custom instruct

Buildah is what the Dockerfile could have been. Instead of using general-purpose shell scripting knowledge to produce images, we ended up with a custom instruction file, complete with its own quirks. I am not sure why everyone seems to think inventing their own domain-specific language is a good thing. It isn't.