Installed Mosquitto easy-peasy like
After a few minutes, I now have Virtuino6 displaying messages from and toggling an LED on the RPi (my ESPs are next... particularly my ESP32CAMs as I found a great topic here about using them )
I can now have a fully customizable App, a less so customizable PC desktop (but functional) and all away from $$ subscriptions and cloud services, but still accessible via WAN when I want it.
I wish someone had told me about NR long ago