Islands, hydration, and when less JS wins

Partial hydration thinking for marketing + app hybrids — ship less JavaScript by default.

Published 2026-04-03 · Updated 2026-07-15 · 11 min read

Interactive islands

Make the prompt lab interactive; keep the article body static. Most bytes should not require hydration.

Measure before you micro-optimize

Profile the real LCP element. Guessing wastes sprints.

Progressive enhancement

Core content readable without JS. Enhancements layer on. Resilience is a feature.

#architecture#performance#hydration

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