PackML MQTT Simulator integrates with United Manufacturing Hub

PackML MQTT Simulator can be used with United Manufacturing Hub as a synthetic machine-data source for testing PackML-over-MQTT and Sparkplug B pipelines before connecting real equipment. UMH Classic documentation explicitly lists it as a community-contributed microservice enabled by default, which makes the pairing useful for proving UNS ingestion, dashboards, and downstream manufacturing analytics in a lab environment.