Proof
No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.react-native-config-reader
native-seam only: the package's two-line JS runs unchanged and finds an RNConfigReader module on both platforms, including the iOS BuildConfigs sub-object it dereferences at import40%
API coverageWorking
module presence on both platforms so the import never throws, the iOS BuildConfigs branch, and the DEBUG/BUILD_TYPE fields every Android BuildConfig carries — answered truthfully for a preview build
Missing (3)
the app's own generated BuildConfig fields: upstream reflects whatever gradle declaredwhich the browser cannot knowso any app-private flag reads back undefined exactly as it would in a build that never declared it