How Does Work? takes static assets and converts them into a progressive web app. users service workers generally and Workbox specifically to cache your app’s assets locally in your users browsers.

When you upload your zipped application to, the following things happen:

  1. Your files are extracted and uploaded to Amazon S3
  2. A service worker is generated to cache these assets
  3. A web manifest is created so your app can be installed on your users homescreens or desktops
  4. Your apps icons are uploaded

Additionally, your domain (either custom or on will then point to the latest version of your application.