Redirect Matrix in next.config

// next.config.ts
import type { NextConfig } from 'next';

const redirects: { source: string; destination: string; permanent: boolean }[] = [
  // Old blog paths -> new
  { source: '/blog/:slug', destination: '/posts/:slug', permanent: true },
  // Vanity URL
  { source: '/pricing', destination: '/plans', permanent: false },
  // Remove trailing slash
  { source: '/:path+/', destination: '/:path+', permanent: true },
  // External redirect
  { source: '/docs', destination: 'https://docs.example.com', permanent: false },
];

const config: NextConfig = {
  async redirects() {
    return redirects;
  },
};

export default config;