This stuff is wild. I saw a video a few months ago where they used this tech to build devices that could push to talk (via a mumble server hosted on the mesh network) do live geo location, live video feeds, across multiple devices.
A team of people could build a mesh network that provides all those comms and situational and tactical information with consumer hardware for like $100 and it's all off grid and the more devices you add the more resilient and reliable the network becomes.
Here's the video: https://m.youtube.com/watch?v=ofR7GFNZzJY
Lots of interesting applications for this stuff.