I've watched a few YouTubes on "The Comms Channel:"

https://www.youtube.com/watch?v=ZsIWyVzqJPM

I'm still very much in "explore" mode, trying to figure everything out, and relying heavily on info from https://meshtastic.org and YouTube.

I ordered two *different* devices; this RAK because I want at least one "field test" unit, and it is the lowest power consumption device available. I hope to eventually configure it with a solar panel and LiPo battery and field test it in various locations.

The other one, slated to arrive tomorrow, is less expensive and also has a display, but it is power-hungry so I will probably use it as a base-unit.

There seem to be many layers of complexity; it's clear that I have a LOT to learn, but the goal is to be the pioneer, figure out how to configure these things, see how to use them to send cash (Cashu), and see if I can eventually figure out how to produce "turnkey" systems that any/everyone in the local community can "just turn on and use."