I am a self taught Ruby/Rails developer who has recently started dipping my toes in the world of Elixir and Phoenix.
I am having a lot of fun as I find it to be a refreshing approach to web development.
Elixir's guide is quite exhaustive. You can easily start building a toy app over a weekend.
I have open sourced the source code for my blog/web-shop that I built using Elixir/Phoenix. I am not an Elixir expert and this is not the best written Elixir app, but if anyone wants to look at the code for a simple CMS and shop built with Elixir and Phoenix, here is the link - https://github.com/authentic-pixels/ex-shop.
Here is a link to the live website - https://www.authenticpixels.com/