Gatsby v4's New Rendering Modes
summary
Gatsby v4 adds SSR and deferred static generation (DSG) that builds pages on first request, turning build time from a function of page count into a function of traffic; a cited site build that reached 1 hour 54 minutes motivates the change. DSG creates a snapshot of data and JS bundle at build time, caches generated pages as static files in a bucket for global determinism and atomicity, supports mixing SSG/SSR/DSG per page, and includes parallel query running and lmdb under the hood.
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