Looking for a blog post about using pure Elixir to create AI agentic workflows

I recently read a blog post showing how someone used pure Elixir to create agentic type AI workflows. It was 2 parts, with the second part having a more complex scenario.

I can’t believe I didn’t bookmark it, because right now it fits my use case really well.

Maybe someone knows what I’m talking about and saved it?

I don’t know how but Grok 4 just found it, leaving it here in case it helps would be Googlers!