Ask HN: Best resources to learn Elixir/Phoenix

Hi! I'm a front-end developer but I'm interested in diving into a back-end language and Elixir/Phoenix caught my attention due to LiveView.

Currently I'm using an udemy course (https://www.udemy.com/course/the-complete-elixir-and-phoenix-bootcamp-and-tutorial/) and although it has been great, I fear that I might be missing something important along the way.

I've also looked into Elixir School for documentation and Exercism for, well, exercises, but I was wondering if you guys suggest any other material.

Thank you in advance!