Controlling Tasmota devices with openhab over VPN


i have two networks which are connected via fritzbox VPN.

Simple question: Is it possible, to host a OH instance on network A and control Sonoff devices with Tasmota on network B?


That should be possible.
As long as the VPN exists clients and broker can reach each other.

So that’s an MQTT question? Where will I put my MQTT broker, and can I then get the devices on the two networks to talk with it.

Yes, it is a mqtt question. The broker is also in network A. Only the tasmota devices are in network B.