Papercups | Learning Elixir’s `GenServer` with a real-world examplePapercups is an open-source live chat widget. Chat with your customers to improve conversions and customer satisfaction.Learning Elixir's `GenServer` with a real-world example [https://papercups.io/blog/genserver]If nothing else, this article captures why genservers are painful to use. Imagine

Null-tracking, or the difference between union and sum types [https://blog.waleedkhan.name/union-vs-sum-types/]