Another bookmark for myself. Would it make sense to use Akka over RabbitMQ?
https://www.rabbitmq.com/getstarted.html
“Now when do you use RabbitMQ with Akka? When you need to have the guarantee that your message is delivered to the remote actor. Note that as RabbitMQ uses an at-least-once delivery, your receiving actor must be idempotent or have a way to handle duplicates. But your message never gets lost.”