I personally don’t think this is a good idea, and I think the formatter plugin is going to give someone insane amounts of regret one day. It’s neat as “look what I did” but Elixir is all about removing magic.

It (lack of magic) is one of the things I appreciated most, having originally come from Ruby and Rails. I’ve been using it professionally for nearly ten years, and I can say this isn’t a feature I’ve ever really wanted. My text editor can save the typing via shortcuts I type, and in doing so supports string keys, atom keys, has zero compile time dependencies, and no new syntax ;)

I’d really encourage you to put a note at the top of the readme that this shouldn’t be used in production code.