Samiz offers a P2P/local relay network for Nostr using BLE as either an alternative or backup system in case the internet goes down or your ISP decides to wreck havoc with dictator-level censorship. You can have your phone on airplane mode cutting off all forms of internet connectivity including WIFI & still be able to relay your Nostr notes to others, receive from others you have an open channel with, and eventually it’ll reach someone who has an open channel with someone else connected with the internet, thus relaying your Nostr notes to the masses. Brilliant! 🫡