Isn’t this the conundrum? I need to be on a v2 binding before I migrate to OH3. Hence, the v3 UI is of no use, if mqtt1 does not run on it… I need the conversion on OH2 first, then move to OH3?!
I will try:
This should allow for a one by one (mqtt-item-rule) transition.
Otherwise I will go with a test system, and replicate your (Rich’s) set-up (which I really like), with Docker on a rPi4, also installing grafana; something I wanted to do for a long time… as it provides nice graphs for HABpanel.