Prompt Once: Scaling Expo Brownfield Across 100+ Apps
summary
Claim: adding Expo Brownfield to mature native apps avoids rewrites and scales. An automated Tuft agent integrates across 100+ apps, producing XCFramework/SPM and Android artifacts, exercising isolated vs integrated approaches from SDK 55. Surprises include class-name collisions and multiple-runtime needs, triggering product fixes and skill updates. Result: many apps build and run with Expo embedded, but integrations are not universally one-shot and some required manual fixes.
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chapters (9)
- 0:00Expo Brownfield intro
- 3:21React Native Brownfield evolution
- 5:23Isolated vs integrated
- 7:26Live demo: isolated Brownfield
- 12:01Advanced Brownfield tools
- 13:48AI Brownfield with Tuft
- 16:37Scaling 100+ apps
- 19:27Real-world fixes
- 20:32Key takeaways
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