Thanks for this question Aston. I hope my response adds value to this forum :), I didn’t post this anywhere yet:

I finished learning the basic Elixir syntax and put up this simple example of a GenServer with Supervisor project.

I was able to run a million tasks in 4.2 seconds seconds on my PC which is very good for a task queue like this, it means dispatching approximately 238,095 tasks per second which is very good.

I do realize that the latest HexDocs “antipatterns” document specifically calls out creating unnecessary GenServers:

An example of this anti-pattern, as shown below, is a module that implements arithmetic operations (like add and subtract ) by means of a GenServer process

And then pretty much shows something very similar to what I made, so I realize that it is not really an example of where I would use a GenServer in production.

But I feel proud of completing this task, since GenServers and supervisors are one of the more advanced concepts in Elixir, and this is, after all, a complete application that uses them.

Very good! If you are looking for next steps:

• Look at replacing IO.puts/1 with Logger.debug/2
• Write some tests that interact with the GenServer
• See if you can start the genserver with a DynamicSupervisor