Very cool episode, thank you!
I'm playing with Reticulum which has a bit more mature architecture, you guys are would love it. It runs on the same devices, but also IP / I2P, wifi halow (the new wifi standard that's up to one km range). It is a networking stack though, it can do ssh, messaging over the radio through the city, I even ported ecash cashu over it so you can send sats. It is done mostly by this one cool guy Mark who lives in an RV and puts all his soul and time to this. And it is actually meshing, if there's a route, it finds it. Neighbors can do wifi, you go further over lora. Very cool. And it's encrypted by default.
The messaging apps can work over wifi, so if you have a node at your home (or an RV), when your phone connects to the wifi, it automatically connects to the mesh. If you send a message, the node forwards it through lora or whatever