Yes, you are correct. MQTT is a network protocol. You build your infrastructure on top of it to support stuff like storage, retries, resiliency, etc... Howeve

Yes, you are correct. MQTT is a network protocol. You build your infrastructure on top of it to support stuff like storage, retries, resiliency, etc... However, it does gives you some guarantee, namely that the message will oblige its QoS (at most once, at least once, exactly once). On top of these guarantees, you build whatever you need. Honestly, I am quite glad that you are writing these posts, it is a great service for the community and if you end up open sourcing it, the project will bring a lot of value to everybody. Thanks for your posts :)