Obviously, you need a computer and internet connection. The rest is online available on e.g. surce forge. In some areas it does make sence to build up Wi-Fi networks using repeaters to extend the range and share the password. Every Wi-Fi network can be set to open a start page or any page that is only in the computer network without transfering to the internet. If you add to those by modifing satellite dishes direct connections to other WiFi networks a computer sytem can stretch out for a very long distance. Beside the few main internet providers using landline connection Elon Musk offers Star Link and even the Astra TV Satellite company has an internet access offer.
The rest is pretty much the same as in a regular TV station. You check news of news agencies to translate them, copy them or further investigate. You use cams and small video editing hardware to create content that is just pushed into a closed system of Wi-Fi networks by all means, using local contacts for maintenance.
