For a long time I searched a solution to communicate between subflows, and I adopted a solution that works and I use it lot. It's have for example save subflow, that then broadcasts that changes to another subflow, that I use in different zones of the code.
My solution is a internal MQTT server in localhost, I publish a message and the message arrives at the other subflow. This works well, but I can't wonder if this is the best approach... Sometimes I notice some lag.
Any one knows a better solution for this?