If it's super simple like that and the throughput isn't massive, use something else you don't need to support, like AWS's SQS. If you're bad at hosting and nee

If it's super simple like that and the throughput isn't massive, use something else you don't need to support, like AWS's SQS. If you're bad at hosting and need the throughput, there's cloudamqp. So many options for pub/sub systems so use what works for you.