FTR, I’m not an Elixir contributor myself.
Some useful links:
https://elixir-lang.readthedocs.io/en/new-guides/repo/contributing/
Learning about metaprogramming is great in order to extend any language on your own, you’ll learn about the internals along the way.
But you could just build a small library, without much thinking. As long as you start.
Very friendly community.
