Basically everything. 😅

The most obvious use case for me is to create invoices & check them. (but instead of polling a server every 1 sec have a websocket connection to receive invoice updates)

So every bitcoinSwitch, bitcoinPoS, etc could use this while decoupling the wallet completely from the app. (whether that's Start9, Umbrel, Mutiny, Alby or any other provider that implements NWC) 🤯