Agent Skills: alby-bitcoin-builder

Add bitcoin lightning wallet capabilities to your app using Nostr Wallet Connect (NIP-47), LNURL, and WebLN. Send and receive payments, subscribe to real-time payment notifications (use this instead of polling), fetch wallet balance and transactions, do bitcoin to fiat currency conversions, query lightning addresses, conditionally settle payments (HOLD invoices), parse BOLT-11 invoices, verify payment preimages.