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 I just want to be able to communicate with my family. Maybe I should just buy a few devices? 
 Happy to discuss sometime?
Over Signal or SimpleX...😃
I'll look up & send links to what I have, and can try to answer specific questions...😃 
 The most important part is to check which  frequency is most suitable for you region before you make a purchase. Lillygo official webstore is a great choice if you want unit that works out of the box.