During November 2024, Dave contributed to the pointfreeco/swift-composable-architecture repository by implementing Date support for AppStorage, enabling seamless storage and retrieval of both optional and non-optional Date values in UserDefaults. He introduced new initializers and comprehensive tests to ensure reliable time-based state persistence across app launches, reducing boilerplate and improving the end-user experience. Working primarily with Swift, SwiftUI, and state management concepts, Dave focused on expanding test coverage to prevent regressions and maintain code health. Although the work was limited to a single feature, it addressed a nuanced aspect of state persistence and demonstrated careful attention to integration and reliability.