Do you think that ham radio couldn't be? Or isn't? What you really want is privacy, authz/authn concerns, and decentralization, it sounds like. And TCP/IP is about as useful as a "PHY" layer for your application as is ham radio.
Plus, solutions like what you're describing require a relative ease of use - unless you only want to talk to the 17 other people in your geographical area who have similar technical backgrounds.
Do you think that ham radio couldn't be? Or isn't? What you really want is privacy, authz/authn concerns, and decentralization, it sounds like. And TCP/IP is about as useful as a "PHY" layer for your application as is ham radio.
Plus, solutions like what you're describing require a relative ease of use - unless you only want to talk to the 17 other people in your geographical area who have similar technical backgrounds.