LND (Lightning Network Daemon) LND is the most widely deployed Lightning implementation. Written in Go, primary backend for many services, exchanges, and apps. Components - — daemon process. - — CLI client. - — auto-generated TLS for gRPC/REST. - — capability tokens for API auth. - Backend options: (RPC + ZMQ), (similar), (BIP157/158 SPV). Configuration : Macaroons Per-action capability tokens. - — full access. - — read-only. - — generate invoices only. - Custom: bake via with specific permissions. API calls send macaroon as gRPC metadata or HTTP header . gRPC API Proto: . Subservers: - — mai…