PWA Vanilla JS, NodeJS **Testing**: [Jest](https://facebook.github.io/jest/docs/en/getting-started.html) build our own service worker instead of workbox **Database**: NoSQL database (MongoDB + Mongoose) **Frontend**: Learn [Sass](https://sass-lang.com/)? **Cashing**: **Deploying**: To explore: [firebase](https://firebase.google.com/) [workbox](https://developers.google.com/web/tools/workbox/) [PushAPI](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) [Redis](https://redis.io/) pre-commit script
