code: function extractFile (err, zipPath) {
    if (err) return onerror(err)
    fs.writeFile(path.join(__dirname, 'path.txt'), paths[platform], function (err) {
      if (err) return onerror(err)
      extract(zipPath, {dir: path.join(__dirname, 'dist')}, function (err) {
        if (err) return onerror(err)
      })
    })
  }
docs: unzips and makes path.txt point at the correct executable