Firestore Query and Index Gotchas, Cataloged
May 12, 2026
Inequality-filter limits, composite indexes that vanish in new environments, array and map index fan-out, hot-document contention, and cursor pagination done right.
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Field notes from production Firebase work.
Testing Firestore Security Rules Before They Burn You
April 14, 2026
Security rules are the highest-consequence, least-tested code in most Firebase apps. A practical emulator test harness — and the denial tests that matter more than the grants.
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