I don't think LoRa in the ISM bands can handle video. Potentially useful for alarms/watering system control
https://meshtastic.org/ Meshtastic is nice software
Looking at that desert / 3d printer one I wonder if you could get a robot to build glass bricks, they could be filled with sand like https://www.brikawood-ecologie.fr/concept-en/ to create a desert city from sand and sunshine