This was what I was going to suggest. This is what the Nix package manager does where folders are hashes of the build dependencies. In v2 they suffixed the pack

This was what I was going to suggest. This is what the Nix package manager does where folders are hashes of the build dependencies. In v2 they suffixed the package name and version number. I've noticed that people tend to build systems like these using only hashes and it's only later in the project they realize it sure would be nice not to have to look this up all the time.