veniamlaborum/src/examples/sign_btc.js

HDkey signer of transaction for BTC, ETH, TRX, FIL, DOT..., also can generate WIF

const { BtcTxSigner } = require("../index");

const privKey =
  "0xc540109715836b53b4bea312520b0076c0d1fe4122651caa4ffcc6176d372e19";
const mockFromAddress = "";
new BtcTxSigner();