Solving Riverpod’s Family Provider Cache Dilemma with Signals & mapSignal
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Riverpod cache dilemma with signals is relevant to state management in AI/ML apps.
Riverpod's family providers create isolated state silos for parameterized queries, causing stale data when overlapping subsets (e.g., tasks in 'inProgress' and 'done' columns) are updated independently. Switching to a normalized entity store using Dart's `mapSignal` (from `package:signals`) with fine-grained key-level reactivity and `computed` projections eliminates redundant network calls and complex invalidation loops. This pattern, applicable beyond Riverpod to BLoC or Redux, treats filtered views as derived projections from a single source of truth rather than independent caches.