Overdrive - Fast async process primarily based Swift framework with target on kind safety, concurrency and multi threading. BitcoinKit - Bitcoin protocol toolkit for Swift, BitcoinKit implements Bitcoin protocol in Swift. Brisk - A Swift DSL that enables concise and efficient concurrency manipulation. PrediKit - An NSPredicate DSL for iOS, macOS, tvOS, & watchOS. Ensembles - A synchronization framework for Core Data.