If you want to have internet everywhere there is Starlink. Competing against it as hobbyist is a waste of time.

But having a small, low-power, lightweight messenger that uses an extremely robust (and thereby slow) mode to send and receive messages is an interesting niche. For VHF/UHF/SHF you can use LoRa.

Technologically speaking, Starlink is the way to go.

Economically, Starlink and its subscription model cannot compete with a hardware cost only mean of communication where all elements are modular in this particular context.

On the other hand, even people in remote communities will also end up getting hold of a cheap smartphone that they would like to connect to the internet