Both raspis have a wifi hospot & will detect if their OTG port is connected to a PC or physical/builtin USB Ethernet adapter and will attempt to get a Internet uplink.
Anytime there is no uplink it fails over the uplink route to the lora adapter (which intern encodes packets for meshcore routing to the "ISP" node).
So in my setup one pi is hooked up to my laptop and the other is on a wall supply.
