<p>When you have a limited number of resources that you have to share for your all application, like database connections or worker processes, what you need is a <em>pool</em>. In this post, we're going to take a look at one possible pooling strategy that highly leverages Elixir's built-in <a href="https://hexdocs.pm/elixir/Registry.ht... resulting in fast, reliable, and cleanly designed pools.</p>