clauderic/dnd-kit ? reverse-engineered prompt

I want to build a modern toolkit for creating drag-and-drop interfaces for web apps. The main goal is for it to be flexible and high-performance. It should be built around a framework-agnostic core library, with separate adapters so developers can easily use it with React, Vue, Svelte, or even SolidJS.

The experience should be really polished, with silky smooth animations and a lightweight footprint. Accessibility is super important, so it needs full keyboard support and sensible defaults for screen readers. It should also handle different inputs like mouse, touch, and keyboard seamlessly. The toolkit needs to be powerful enough for common use cases like sortable lists, grids, and moving items between different containers. It should be an extensible system that developers can customize for their own needs.