Build a robust React dark mode with CSS variables, system preference, SSR-safe setup, persistence, accessibility, and Tailwind integration.
Learn Next.js image optimization with next/image: responsive sizes, AVIF/WebP, blur placeholders, CDN loaders, caching, and production checklist.
Apollo vs Relay: strengths, trade‑offs, and when to choose each for React GraphQL apps, from caching and pagination to SSR, typing, and developer UX.
A practical guide to React dynamic imports and lazy routes with React Router, preloading strategies, SSR notes, and performance pitfalls.
A hands-on React drag-and-drop tutorial using dnd-kit: from basics to a Kanban board, with accessibility, performance tips, and common pitfalls.
Build a fast, installable React Progressive Web App with Vite and Workbox: manifest, caching, offline, updates, and Lighthouse audits.
