Maybe not a complete solution, but mesh networks are something everyone should be playing with in their spare time.
Discussion
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Where can I get more info?
Relax, enjoy the flight
It’s costing me a fortune.
https://meshtastic.org is a good start. You can get hardware at https://store.rokland.com also. Try something like the T-Beam with a display to start. You can easily 3D print cases for them.