SwiftData, as the successor to Core Data, has introduced a multitude of innovative and modern design ideas. Despite its availability for some time now, many developers have yet to adopt it in their projects. This situation is partly due to SwiftData’s higher requirements for the operating system version. Additionally, because SwiftData is not yet mature enough in some functionalities, developers might choose to continue using Core Data even if their operating system version meets SwiftData’s requirements. Can we integrate some of SwiftData’s excellent design philosophies and ingenious implementations into the practical use of Core Data? This article aims to explore how to introduce elegant and safe concurrency operations similar to those of SwiftData into Core Data, implementing a Core Data version of @ModelActor.