Hello
Lets put it here like feature request. I see it on forum.
It would be great to have MQTT broker on Mikrotik devices (like mosquitto), auth support, acl support TLS-SSL, qos... Like packet or included in system packet.
It require little resources, but can do lots of thing now and in feature. Now that Mikrotik have Lora Gateway, We can have combine that with MQTT.
Also pub/sub are require to give easy way to make communication, so using this MQTT, MT can send/receve, run scripts and lot more. Like I write, possabilitis are endless.
If it is imposible to make broker, then just pub/sub without broker. For settup, CLI is more then good, no need for Winbox support.
Broker can be on linux, BUT it is much easy sometimes to have it on some MT device (like CCR, RB1100AHx4, ARM or any other ...) and to use it for, IoT, network devices, etc...
Continue with good job MT.