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 mess

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.