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Introducing Mosaic
Engineering·Feb 10, 2026

Introducing Mosaic

Your tests pass. Your app still breaks. We built an in-app testing framework that runs inside your live application — zero mocks, direct store access, real race condition detection.

Why frontend testing is broken
Testing·Feb 03, 2026

Why frontend testing is broken

The entire frontend testing ecosystem splits into two camps that have never been unified. State-aware tools can't run tests. Testing tools can't see state. Here's what in-vivo testing fixes.

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