a few years back i had one side project that i did in elixir/phoenix felt like a good fit specifically because it had a lot of state that needed to live outside of the request/resp cycle but also didn't live in a db

Specifically the project was an app that ran terraform commands inside an actor and streamed the logs to the browser

each actor had a terraform config and each message was a command to run on that config

so in that case the actor model felt like it aligned really well with how the program needed to work