React Summit 2026

3 Places Firebase Breaks Your Next.js UX (Auth, Firestore, Remote Config) | Rosário Fernandes

7:23 · 12 Jun 2026 – 16 Jun 2026 · YouTube

About this talk

This talk, titled "Taming the Flicker: Firebase Patterns for React Server Components," focuses on addressing common architectural mismatches between Firebase client SDKs and React Server Components. The speaker, Rosário P. Fernandes, discusses key issues like the auth flicker, where a Sign In button incorrectly displays for logged-in users, and how to resolve this with FirebaseServerApp. He also explores the Firestore flicker caused by offline cache and real-time updates, demonstrating techniques to reduce unnecessary renders to zero, along with how to manage Remote Config flickers using server-side fetching for feature flags. Rosário, a Developer Relations Engineer at Firebase, shares valuable insights gained from his extensive experience at developer events.

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React Summit 2026

12 Jun 2026 – 16 Jun 2026

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