How about mesh Bluetooth networks? Far easier to setup. Repeaters should be possible. nostr:nprofile1qqsgydql3q4ka27d9wnlrmus4tvkrnc8ftc4h8h5fgyln54gl0a7dgspxdmhxue69uhkuamr9ec8y6tdv9kzumn9wshkz7tkdfk...