# BitcoinConfig A type-safe, fluent builder for Bitcoin Core CLI arguments. ``` struct BitcoinConfig where N : BitcoinNetwork ``` ## Overview `BitcoinConfig` accumulates validated `-key=value` arguments and tracks conflict-relevant state in a `ConfigFlags` bitmask. Call `validate()` before passing the config to `Daemon.start(with:)` to surface warnings and errors. Create configs exclusively via the static factory methods: ```swift BitcoinConfig.mainnet() BitcoinConfig.regtest() ``` The initializer is intentionally `internal` — phantom typing requires that the network type is always inferred from the factory call site.