Just had a thought... what if your cashu ecash was on a physical device like this that used nwc or another secure method over nostr to make a payment? Yeah, it's like client-server architecture, but both client and server is yours and heck, it makes your ecash physical, not individually, but like an ecash vault. Even if we gotta trust a mint, we can still secure the cash. 🤷
@calle 👁️⚡👁️ this is where you tell me someone is already working on this too.
I would love to see this, maybe on an esp32-style cheap device.