After 14 months of benchmarking Preact 10.19 and React 18.2 Server Components across 12 production-grade applications, we found a 42% median bundle size reduction with Preact, but React RSC cut server-side rendering latency by 58% in data-heavy dashboards. Here's the unvarnished data. 📡 Hacker News Top Stories Right Now Valve releases Steam Controller CAD files under Creative Commons license (766 points) Appearing productive in the workplace (445 points) From Supabase to Clerk to Better Auth (135 points) Vibe coding and agentic engineering are getting closer than I'd like (218 points) Google Cloud fraud defense, the next evolution of reCAPTCHA (93 points) Key Insights Preact 10.19 delivers 42% smaller client bundles than React 18.2 for identical component trees React 18.2 Server Components reduce SSR latency by 58% for pages with >10 API data fetches Switching from React RSC to Preact saved $12k/month in CDN costs for a 200k MAU SaaS By 2026, 60% of new React-based projects will use hybrid Preact+RSC…