pawol.nu/app/robots.js

export default function robots() {
  const isProduction = process.env.NEXT_PUBLIC_ENV === 'production';

  if (!isProduction) {
    return {
      rules: {
        userAgent: '*',
        disallow: '/',
      },
    }
  }

  return {
    rules: {
      userAgent: '*',
      allow: '/',
    },
    sitemap: 'https://pawol.nu/sitemap.xml',
  }
}