Comment by robotmay

Agreed. Elixir/BEAM gives you some really interesting new ways of solving problems. A couple of years ago I built a subscription system that interacted with Stripe that only kept the state whilst a user was interacting with the system (used a GenServer as a read-through/write-through Stripe API cache that exited after they stopped using it). It was by far the least irritating subscription system I've ever worked on.