My React Native live-streaming app uses Firebase Auth with Apple Sign-In. Locally the login flow is flawless, but once the build is uploaded to TestFlight it throws a plain “network error” as soon as the Apple login button is pressed. Everything else in the build behaves, so I suspect a mismatch in Apple service IDs / certificates or the way Firebase handles tokens in the TestFlight environment. I have not been able to verify TestFlight-specific network settings yet, so that angle may also need a quick check. I need someone who can jump in right now and deliver a fix within the next 2–3 hours. You’ll have access to the source repo, Firebase console, and my Apple Developer account so you can regenerate certificates, tweak entitlements, or adjust Info.plist settings as required. Deliverables (today): • A TestFlight build where Apple Sign-In succeeds end-to-end • A concise summary of every change you made so I can replicate the setup for future builds You should be fully comfortable with React Native, Firebase Auth, Apple Sign-In, Xcode, and the Apple Developer Portal. If you’re ready to tackle a high-priority hotfix, let’s get started immediately.