bit-cmdr

function parseArgs(args) {
  let parsed = {};
  try {
    parsed = Object.assign(
      ...args
        .slice(2)
        .reduce((l, r) => {
          if (!Array.isArray(l)) l = [[l, r]];
          else if (r.startsWith('--')) l.push([r]);
          else l[l.length - 1].push(r);