flutter-it/watch_it.

feed-datasource-expert

Expert guidance on implementing paginated feeds and infinite scroll in Flutter using FeedDataSource and PagedFeedDataSource patterns. Covers base feed data source, cursor-based pagination, auto-pagination at length-3, proxy lifecycle with reference counting, feed widget implementation, filtered feeds, event bus integration, and creation with createOnce. Use when building paginated lists, infinite scroll, feed views, or managing proxy lifecycle in feeds.

watch-it-expert

Expert guidance on watch_it reactive widget state management for Flutter. Covers watch functions (watch, watchIt, watchValue, watchStream, watchFuture), handler registration (registerHandler, registerStreamHandler, registerFutureHandler), lifecycle functions (callOnce, createOnce, onDispose), ordering rules, widget granularity, and startup orchestration. Use when building reactive widgets with watch_it, watching ValueListenables/Streams/Futures, or managing widget-scoped state.