Long range (LoRa) mesh networks are interesting alternatives to communication, especially when state actors are blocking internet access for various reasons.
More details about meshtastic: https://meshtastic.org/
About its current state of encryption: https://meshtastic.org/docs/overview/encryption
Here’s a video with a lot of guidance and examples of use: https://youtu.be/EAQI2ZSmxPU?si=lF5xr8fKyCRHEk7F
Here is an alternative Piped link(s):
https://youtu.be/EAQI2ZSmxPU?si=lF5xr8fKyCRHEk7F
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I’m open-source, check me out at GitHub.