Miniscript 101: Bitcoin Script Guide & Nunchuk Integration

Miniscript 101 is a structured, analyzable language for Bitcoin Script (BIP-379) that turns complex spending conditions into reusable building blocks. It defines core modules—public keys, multisignature, absolute and relative timelocks, hashlocks—and logical operators (AND, OR, ANDOR) alongside flexible threshold policies. Taproot support and MuSig2 aggregation enhance privacy and reduce transaction size. The guide shows how to use Miniscript in the Nunchuk wallet: create single or group Miniscript wallets, apply templates or custom scripts, and recover funds via BSMS output descriptors. Real-world use cases include inheritance planning, corporate treasury management, atomic swaps, insurance payouts, lending, and emergency recovery. By adopting Miniscript, developers and traders can safely build advanced Bitcoin spending rules, minimize script errors, and leverage Taproot’s key and script paths for both efficiency and privacy.