I will set up Firebase infrastructure for your app

Firebase is quick to start and easy to leave insecure. The default rules on most projects I audit would let any user read every record. What I set up: • Authentication with the providers you need — email, Google, Apple, phone — and the account-linking edge cases handled • Firestore or Realtime Database with a data model designed for your read patterns, not just your entities • Security rules written and tested with the emulator, so access control is proven rather than assumed • Storage with upload rules, size limits and type restrictions • Cloud Functions for the logic that must not live on the client • Push notifications with topics and per-user targeting • Analytics and Crashlytics You get the configured project, the rules with their tests, a document explaining the data model, and a cost estimate based on your expected usage — Firebase bills are famous for surprising people at scale. If your usage pattern makes Firebase expensive, I will say so and suggest what to use instead.