@dnd-kit/core serves as the foundational layer for building accessible, performant, and customizable drag-and-drop interfaces in React. It offers a headless engine, giving you full control over presentation and behavior. It provides utilities for managing drag states, collision detection, and transforms, leaving UI rendering entirely to you. Create unique user experiences with its modular design, accessible focus management, and highly-optimized interactions for smooth and reliable drag-and-drop functionality.