As part of my book on Phoenix 1.3, I have published a code repo demonstrating a minimal rebuild of Phoenix to understand various components of Phoenix, Plug, Cowboy.
For details visit Building a Slim Phoenix
Direct link to GitHub repo Slim Phoenix
The repo doesn’t have a lot of code explanations (that comes in the book). However, any curious mind can quickly go through the commit history and see what is happening.
As always, feedbacks are more than welcome