Firebase Pricing plans
Choose a database: Cloud Firestore or Realtime Database
Tổng hợp triết lý nhân sinh
https://medium.com/oho-software/so-s%C3%A1nh-c%C3%A1c-gitflow-model-v%C3%A0-%C3%A1p-d%E1%BB%A5ng-v%E1%BB%9Bi-cicd-b6581cfc893a
