Type-Safe Environment Variables in Next.js with @t3-oss/env-nextjs and Zod (2026)
Stop shipping empty API keys. Validate Next.js env vars at build time with @t3-oss/env-nextjs and Zod 4: server/client split, Turbopack, and Docker deployments.
App Router Articles
Next.js Content Security Policy: Nonces, Middleware, and Strict CSP (2026)
Learn how to add a strict Content Security Policy to your Next.js App Router app: per-request nonces in middleware, strict-dynamic, style-src pitfalls, and report-only rollout.
Next.js Bundle Analyzer: Reduce JavaScript Bundle Size in App Router (2026)
Find the heavy chunks in your Next.js app, then cut First Load JS by 30 to 60 percent. Install @next/bundle-analyzer, read the treemap, then use next/dynamic, Server Components, and optimizePackageImports to ship under 130 KB per route in Next.js 16.
Next.js generateStaticParams: Dynamic Routes, ISR, and Static Generation (2026)
How to use Next.js generateStaticParams for dynamic routes, ISR, dynamicParams, and Partial Prerendering in Next.js 15 and 16, with copy-pasteable examples.
Next.js Optimistic UI with useOptimistic, useActionState, and useFormStatus (2026)
Build instant-feeling forms and lists in Next.js with useOptimistic, useActionState, and useFormStatus. Production patterns, type-safe rollback, and real Server Action examples.
Next.js Image Optimization with next/image: AVIF, Remote Patterns, and Core Web Vitals (2026)
How to use next/image in Next.js 16 to ship AVIF/WebP, configure remotePatterns safely, add blur placeholders for remote images, and lock down LCP for Core Web Vitals.
Self-Hosting Next.js with Docker: Standalone Output, Multi-Stage Builds, and Production Deployment
Learn how to self-host Next.js with Docker using standalone output and multi-stage builds. Covers health checks, ISR caching with Redis, Nginx reverse proxy, CI/CD with GitHub Actions, and environment variable management.