Would it be interesting for some of the people here to sit together with me and discuss their IT / OT architecture? I've seen the architectures and strategies of a lot of really large enterprises (through working at and for McKinsey) and could help bring you gained experiences into your company as well. Could also connect you with the guys from HiveMQ, Mosquitto, McKinsey, Node-RED/Flowforge, TimescaleDB, etc. if there is interest. Feel free to ping me!