#gatsby5

Build a modular page builder using Gatsby 5 Slice API. Components: 1. Reusable slices for headers, footers, CTAs. 2. GraphQL queries for slice data. 3. Dynamic slice ordering via CMS. 4. Partial builds for changed slices only. 5. Preview mode for content editors. 6. A/B testing for slice variations. 7. Analytics tracking per slice. 8. Responsive image optimization. Integrate with Contentful or Sanity and use StaticImage for performance.