The common pairing.
WHY THEY ARE COMMONLY USED TOGETHER
Official packages exist for every Firebase service, and the combination removes backend work entirely for many applications.
WHAT INTEGRATION REQUIRES
Configuration files for each platform, generated per project Initialisation before any service is used Platform-specific setup for some services
WHAT TO BE CAREFUL WITH
Configuration for the wrong project or environment Initialisation not completing before use Different configuration between development and production
WHAT TO ESTABLISH
Separate Firebase projects per environment.
WHY
So development activity does not affect production data or billing.
WHAT TO WATCH FOR IN COST
Listeners attached and never detached, consuming reads continuously Screens reading entire collections Rebuilds triggering repeated queries
WHY THAT MATTERS ENORMOUSLY HERE
Clients generate billing directly, and a defect multiplies across every installation.
WHAT TO IMPLEMENT
Pagination on every list Local caching Listeners tied to widget lifecycle
WHAT TO TEST BEFORE RELEASE
Consumption under realistic usage.
WHAT TO PREPARE
Remote configuration, so a costly feature can be disabled without a release.