npm i next nextra react react-dom

npm i nextra-theme-blog

import nextra from 'nextra'

const withNextra = nextra({
  theme: 'nextra-theme-blog',
  themeConfig: './theme.config.js'
})
export default withNextra()

export default {
  footer: <p>MIT 2021 © Nextra.</p>,
  head: ({ title, meta }) => (
    <>
      {meta.description && (
        <meta name="description" content={meta.description} />
      )}
      {meta.tag && <meta name="keywords" content={meta.tag} />}
      {meta.author && <meta name="author" content={meta.author} />}
    </>
  ),
  readMore: 'Read More →',
  titleSuffix: null,
  postFooter: null,
  cusdis: {
    appId: 'your_app_id',
    host: 'your_host(optional)',
    lang: 'your_lang'
  },
  darkMode: false,
  navs: [
    {
      url: 'https://github.com/shuding/nextra',
      name: 'Nextra'
    }
  ]
}

import 'nextra-theme-blog/style.css'

export default function Nextra({ Component, pageProps }) {
  const getLayout = Component.getLayout || (page => page)
  return <Component {...pageProps} />
}