This is a really neat use case. Local Nostr, no Internet necessary. BLE mesh networking x Nostr. Remember StreetPass for Nintendo 3ds? Like that, but for notes and other stuff.

nostr:nevent1qqsqcvtsu2mljp9aar636gny7cglr4wqxf7mvr6ae0ze9r5v7cc00vqpz3mhxw309ucnydewxqhrqt338g6rsd3e9upzph4t08d058ptuj62d5av5y6hkm92pd6yhar26556ttjxg2y908ngqvzqqqqqqylzxzhz