what's Sparrow Wallet?

Sparrow Wallet is an open-source desktop application designed exclusively for Bitcoin, emphasizing security, privacy, and user control. It supports single-signature and multi-signature wallets across various script types, including native SegWit, Taproot, and legacy formats. Users can connect to personal Bitcoin nodes or Electrum servers, integrate with popular hardware wallets like Ledger, Trezor, and Coldcard via USB or air-gapped modes, and utilize standards like PSBT for transaction coordination. The wallet provides advanced tools such as a transaction editor for customizing fees and inputs, a built-in blockchain explorer, and support for coin control to enhance privacy by selecting specific UTXOs. Key features include Whirlpool for CoinJoin mixing to obfuscate transaction histories, PayNym integration for reusable payment codes, and compatibility with air-gapped signing devices like Tapsigner. Sparrow prioritizes transparency by displaying detailed transaction diagrams and allowing users to verify broadcasts independently. Available for Windows, macOS, and Linux, it encourages self-sovereignty without relying on third-party custodians, making it suitable for advanced users seeking full control over their Bitcoin holdings.