An idea for permissionless data communications
Two laptops facing each other, cameras on. One flashes a QR code to the other. If the other sees it, it flashes the same code back, or it flashes a code of its own data plus a hash of the data it saw.
A community of laptops in windows could have a mesh of these, with houses with more than one computer serving as routers.
Scaling wider, telescopes and large screens could potentially enable point-to-point links many kilometers distant, linking community meshes.
- once prototype is working, move to javascript frontend and keep python running under uwsgi on backend. then it can run on iPhone with iSH.
- needs my fork of zbar for returning bytes from decode