This. Mix is basically a mix (pun unintended) of Leiningen and Bundler. It works. Quite well. Part of this is due to erlang solving a lot of the problems upfro

This. Mix is basically a mix (pun unintended) of Leiningen and Bundler. It works. Quite well. Part of this is due to erlang solving a lot of the problems upfront (releases) and then the Hex team handling a lot of the rest. But in general, the "Yehuda Katz" lineage (Bundler, Cargo, Yarn v1, mix as José used to be mentored by Yehuda) have pretty good tools worth copying. At least as a base.