source/install.js
#! /usr/bin/env node
const { getNPMConfig, setNPMConfig } = require('@tech_query/node-toolkit');
var browser = ['chrome', 'firefox'].find(name => getNPMConfig( name ));
if (browser = browser || ((process.platform === 'win32') && 'IE'))
setNPMConfig('PUPPETEER_BROWSER', browser);