Proof

@shopify/react-native-performance

native-seam-only Performance module and PerformanceMarker view; the published profiler, state machine and report generator run unchanged from the bundle

80%

API coverage

No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.

Working (4)

getNativeTimegetNativeUuidgetNativeStartupTimestampPerformanceMarker emitting one onRenderComplete once its properties are set

Missing (3)

integrated apps call onAppStarted from their AppDelegate; Peach records the startup timestamp at the app launch whenever the package is installedso it is the realm time origin; uptimeMillis counts from page loadnot device boot