Latest post from Eric on the SmartLogic blog:
After watching Johanna Larsson’s ElixirConf 2019 talk, High Performance String Processing Scripts in Elixir, I was inspired to work on some of my side projects to make them use IO lists instead of plain strings.
I wrote a blog post on using gen_statem to build a simple bare-bones (not RFC compliant) HTTP server with Elixir, that goes through a customisable pipeline of actions to parse requests, use gen_tcp to accept requests, and generates a router and other tidbits.
https://mnussbaumer.github.io/programming/elixir/2019/09/14/a-basic-http-server-in-elixir.html
The fifth Oban recipe post considers monitoring jobs as a group with the power of pattern matching and queue introspection.
A quick blog post about our experience replacing Hexdocs.pm GenStage pipeline with Broadway:
Here’s a guide on how to add password breach lookup (and other NIST SP800-63b validation rules) to you ecto changeset:
The focus is on Pow, but it can be used for any setup.
Part 2 of my Prometheus+PostGIS+Phoenix series is out and can be found at Prometheus, PostGIS and Phoenix Part 2-Alex Koutmos | Engineering Blog. The guide is fairly thorough and deep dives into setting up Prometheus with Phoenix and also some monitoring best practices/theory.
The pièce de résistance from the tutorial can be seen below 
A little in-depth blog post about cowboy and ranch OTP architecture. I tried to explain how cowboy handles requests and sends the responses.
https://scarfacedeb.me/posts/cowboy-architecture?ref=forum
An in-depth article proposing Application Layering, a pattern for building maintainable large-scale Elixir codebases.