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Why Riverpod Was Built and Why Modern Flutter May No Longer Need It

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Riverpod was created by Rémi Rousselet as a direct response to a fundamental limitation in Flutter's InheritedWidget system, which offers no mechanism to unsubscribe a widget from a dependency once it has been registered. This flaw meant widgets could continue rebuilding on every ancestor state change even after the condition triggering their dependency turned false, causing unnecessary overhead in larger apps. Rousselet attempted to fix this at the framework level in a 2019 pull request, but Flutter's then-tech lead Ian Hickson closed it, citing concerns about added complexity in Flutter's core build loop. Unable to patch InheritedWidget itself, Rousselet built Riverpod entirely outside the widget tree to work around the constraint. A newer approach called BlocSignal is now presented as a potential successor, aiming to restore InheritedWidget to its original role as a scoped injector while handling state propagation through reactive signals instead.

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