I will never understand people using 3rdparty MQ and RPC implementations. What a a PR for rocketMQ right here.
You can and you should implement your communication protocols, most of the time 3rdparties are very wasteful and a security liability. I like ZeroMQ (https://zeromq.org/), they have amazing tech guides (https://zguide.zeromq.org/). I still mostly do my own code.
I may have trust issues but sockets are not THAT hard, they're just amzaingly frustrating to debug, not as much as debuging 3rdparty code.