timer while you browsing; small tools, your own data, store in local; know your own time spending in WWW world!
$ npm install
npm run watch // for UI
npm run dev chrome
npm run dev firefox
npm run dev opera
npm run dev edge
npm run build chrome
npm run build firefox
npm run build opera
npm run build edge
The build tool also defines a variable named process.env.NODE_ENV
in your scripts.