Student Developer Builds Offline-First Attendance System After Hitting Firestore Free-Tier Limit

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A university student building an attendance system for his institution's UBA club unexpectedly exhausted Firestore's 50,000 free-tier daily read quota during development and debugging, not from real user traffic. When Firestore stopped responding mid-test, the developer initially suspected a code error before discovering the quota had been fully consumed. Rather than simply waiting for the quota to reset, he chose to redesign the system so it could continue functioning without backend access. The redesign introduced offline-first architecture, storing attendance records locally on-device and syncing them once connectivity was restored. The added challenge was preserving the system's anti-proxy security guarantees even while operating offline, turning an accidental limitation into a more resilient product.

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