Curriculum/Preview Environments & Deployment/3.3 Hot Reloading and Incremental Updates

3.3 Hot Reloading and Incremental Updates

Understand the HMR protocol — filesystem watching, module dependency graph diffing, WebSocket delivery, and React Fast Refresh state preservation — and learn why Vite's native-ESM approach makes incremental preview updates sub-100ms while Webpack rebuilds can take 10+ seconds.

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Make Platform PM

A technical curriculum for Product Managers working on AI code-generation platforms — runtimes, preview environments, agent infrastructure, evals, observability, and extensibility.

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