i like the model being paired with a broader connection. For example, think of a nostr connected messaging app (such as 0xChat) coupled with the Samiz bluetooth broadcaster and a local citrine nostr relay (other nostr apps).

With the above setup, you are connecting to relays and using the broader nostr network to communicate, but in the event that internet connection is gone or poor, you are running Samiz to broadcast notes via bluetooth using your local citrine relay as a backup. You won't really know which is being used (bluetooth or wifi or mobile) but itll use one of them. And you have the freedom to just use bluetooth in similar fashion to bitchat within 0xChat but you can push out to the broader network layer if you please.