next-app-boilerplate/components/Head.tsx

import NextHead from "next/head";

const Head: React.FC = () => {
  const data = {
    title: process.env.NEXT_PUBLIC_PROJECT_NAME,
    description: process.env.NEXT_PUBLIC_PROJECT_DESCRIPTION,
    image: "/images/icons/64x64.png",
    url: "https://urlwebsite.fr/",
  };

  return (
    <NextHead>
      <title>{data.title}</title>

      <link rel="icon" type="image/png" href={data.image} />
      <link rel="apple-touch-icon" href={data.image} />

      {/* Meta Tag */}
      <meta name="viewport" content="width=device-width, initial-scale=1.0" />
      <meta name="description" content={data.description} />
      <meta name="Language" content="fr, en" />
      <meta name="theme-color" content="#27B05E" />

      {/* Open Graph Metadata */}
      <meta property="og:title" content={data.title} />
      <meta property="og:type" content="website" />
      <meta property="og:url" content={data.url} />
      <meta property="og:image" content={data.image} />
      <meta property="og:description" content={data.description} />
      <meta property="og:locale" content="en_US" />
      <meta property="og:site_name" content={data.title} />

      {/* Twitter card Metadata */}
      <meta name="twitter:card" content="summary" />
      <meta name="twitter:description" content={data.description} />
      <meta name="twitter:title" content={data.title} />
      <meta name="twitter:image:src" content={data.image} />
    </NextHead>
  );
};

export default Head;