# Daemon Controls the lifecycle of an embedded Bitcoin Core daemon process. ``` enum Daemon ``` ## Overview Provides static methods to start, bootstrap, and wait for the `bitcoind` process. The daemon runs on a dedicated thread and communicates via JSON-RPC. ## Typical Usage ```swift // Start the daemon Daemon.start(["-regtest", "-server"]) // Bootstrap the direct RPC bridge (cookie auth — credential-free) let cookieFile = dataDir.appending(path: ".cookie") try await Daemon.bootstrap(cookieFile: cookieFile, port: 18443) // Or bootstrap with explicit credentials try await Daemon.bootstrap( url: URL(string: "http://127.0.0.1:8332")!, username: "user", password: "pass" ) // Now AutoTransport routes non-wallet RPCs through the direct bridge. ```