#Next.js

Add real-time features to Next.js with Socket.IO - run a long-lived socket server, connect from the client, and scale across instances with a Redis adapter.

Next.js vs Remix - data loading, routing, ecosystem, and hosting - with a decision table and a clear verdict on which React framework fits your SaaS.

Next.js vs Nuxt for a SaaS - React vs Vue, ecosystem, hiring, and rendering - with a decision table and a clear verdict driven by your team's skills.

Test a Next.js app with unit, integration, and end-to-end tests - Vitest/Jest plus Playwright - using the testing pyramid and running everything in CI.

Add authentication to Next.js with Supabase Auth - client setup, sign-up/sign-in, server-side sessions with SSR, and RLS - plus when owning your auth is the better call.

Use Next.js `output: standalone` to build a minimal self-contained app and ship a much smaller Docker image - with the config, a Dockerfile runner stage, and common gotchas.

Generate a sitemap in Next.js with sitemap.ts - serve it at /sitemap.xml, add dynamic entries from your content, and reference it from robots.txt.

Use Next.js Server Actions to run server code from components without a separate endpoint - with examples, when to validate and authorize, and when a dedicated API is better.

The complete Next.js SEO checklist - metadata and Open Graph, sitemap and robots, JSON-LD, Core Web Vitals, and canonicals - with what FastStaq handles for you.

What a Next.js SaaS starter includes, a realistic weekend plan to a deployable app, and how to choose one - so you build your product instead of the foundations.

Implement RBAC in Next.js - model roles and permissions, assign roles, and enforce permission checks in middleware and on the server - with a data-driven model that scales.

Protect Next.js routes with middleware - read the session, redirect unauthenticated users, scope with a matcher, and gate by role - plus where to enforce auth server-side.