Fine-grained everything
summary
Claims that rendering is essentially solved by signal-based fine-grained reactivity but the real bottleneck is data: server payloads scale with page size not changes, measured as 2 kilobytes vs 0.3 kilobytes in demos. Shows concrete tools: compiler-driven signals, remote queries/commands with validation (Valibot), optimistic updates, batching and forking prefetch to start fetches early, and out-of-order rendering; demos run and reduce network work while preserving correctness and type safety.
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chapters (12)
- 0:00Introduction
- 1:12The Svelte vision
- 2:53Evolution of rendering
- 5:05Fine-grained reactivity
- 7:16Data handling and SSR
- 10:20React server components
- 14:00SvelteKit remote functions
- 20:09Optimized data fetching
- 23:20Form handling paradigms
- 30:56First principles and goals
- 33:45Advanced runtime features
- 37:28Performance myths and reality
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