< stopping in for a snowstorm coffee :)
Love the idea of an off-grid social network. I discovered a software project long ago called PirateBox => https://piratebox.cc . The idea is that you take a single board computer with wifi capabalities (like a raspberry pi) and it broadcasts a local wifi network (with no internet access) that redirects to it's own self hosted website where you can chat with other people who connect to it. You can also share files and there's also a forum. I love taking it with me on flights when everyone is desperate for wifi but there is none except mine!
Clever idea! Would be curious to put one up in your own neighborhood or apartment and see what attention you get from those curious enough to connect.