@scure/btc-signer
Audited & minimal library for Bitcoin. Handle transactions, Schnorr, Taproot, UTXO & PSBT
micro-eth-signer
Minimal library for Ethereum transactions, addresses and smart contracts
@kimafinance/btc-signer
Audited & minimal library for creating, signing & decoding Bitcoin transactions: with Schnorr, Taproot, UTXO & PSBT