https://firebase.google.com

https://github.com/firebase/
https://github.com/firebase/firebase-tools

https://firebase.google.com/docs/
https://firebase.google.com/docs/firestore/
https://firebase.google.com/docs/guides/
https://firebase.google.com/docs/reference/
https://firebase.google.com/docs/cli/
https://firebase.google.com/docs/samples/
https://firebase.google.com/docs/libraries/

https://console.firebase.google.com

inst
npm i -P firebase @firebase/app @firebase/firestore

articles
2020
https://www.smashingmagazine.com/2020/08/comment-system-firebase/
    https://github.com/smashingmagazine/blog-comments
2018
https://www.infoq.com/news/2018/11/google-firebase-mobile-updates
https://nrempel.com/guides/react-firebase-ant-design/

channels
Firebase
https://www.youtube.com/channel/UCP4bf6IHJJQehibu6ai__cg

presentations
2018
firebase at google i/o
https://www.youtube.com/playlist?list=PLl-K7zZEsYLn1omgx_VUhCDFsQMA7PRDd