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How a React 19 Kanban Board Was Built for Real-Time, Offline-First Collaboration

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A developer has detailed the architecture behind an enterprise-grade, real-time Kanban board built using React 19, Vite, TypeScript, and Tailwind CSS. The application uses client-side virtualization via TanStack Virtual to render thousands of DOM nodes while sustaining 60fps during drag-and-drop interactions. It features an offline-first Progressive Web App setup powered by a Service Worker that keeps the board fully functional without an internet connection. A custom undo/redo state machine built into Zustand handles optimistic UI updates and automatically rolls back failed network requests. The project achieves 99.12% test coverage through Vitest and is positioned as a foundation for future AI-powered, enterprise task management tooling.

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