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ASDF, the package manager for all your languages

A full guide to installing ASDF and using it to install and choose versions of Erlang, Elixir, Node and Ruby

https://alchemist.camp/episodes/asdf-language-versions

Shameless plug: Check out @elixirstatus' other community project:

Credo, a new static code analysis tool that acts as a code linter, but also focusses on teaching coding practices and code consistency.