app/about/page.tsx

@@ -2,6 +2,9 @@ import { Authors, allAuthors } from 'contentlayer/generated'
 import { Mdx } from '@/components/MDXComponents'
 import AuthorLayout from '@/layouts/AuthorLayout'
 import { coreContent } from 'pliny/utils/contentlayer'
+import { genPageMetadata } from 'app/seo'
+
+export const metadata = genPageMetadata({ title: 'About' })
 
 export default function Page() {
   const author = allAuthors.find((p) => p.slug === 'default') as Authors

app/blog/[...slug]/page.tsx

@@ -4,6 +4,61 @@ import { sortedBlogPost, coreContent } from 'pliny/utils/contentlayer'
 import { allBlogs, allAuthors } from 'contentlayer/generated'
 import type { Authors, Blog } from 'contentlayer/generated'
 import PostLayout from '@/layouts/PostLayout'
+import { Metadata } from 'next'
+import siteMetadata from '@/data/siteMetadata'
+
+export async function generateMetadata({
+  params,
+}: {
+  params: { slug: string[] }
+}): Promise<Metadata | undefined> {
+  const slug = params.slug.join('/')
+  const post = allBlogs.find((p) => p.slug === slug)
+  const authorList = post?.authors || ['default']
+  const authorDetails = authorList.map((author) => {
+    const authorResults = allAuthors.find((p) => p.slug === author)
+    return coreContent(authorResults as Authors)
+  })
+  if (!post) {
+    return
+  }
+
+  const publishedAt = new Date(post.date).toISOString()
+  const modifiedAt = new Date(post.lastmod || post.date).toISOString()
+  const authors = authorDetails.map((author) => author.name)
+  let imageList = [siteMetadata.socialBanner]
+  if (post.images) {
+    imageList = typeof post.images === 'string' ? [post.images] : post.images
+  }
+  const ogImages = imageList.map((img) => {
+    return {
+      url: img.includes('http') ? img : siteMetadata.siteUrl + img,
+    }
+  })
+
+  return {
+    title: post.title,
+    description: post.summary,
+    openGraph: {
+      title: post.title,
+      description: post.summary,
+      siteName: siteMetadata.title,
+      locale: 'en_US',
+      type: 'article',
+      publishedTime: publishedAt,
+      modifiedTime: modifiedAt,
+      url: './',
+      images: ogImages,
+      authors: authors.length > 0 ? authors : [siteMetadata.author],
+    },
+    twitter: {
+      card: 'summary_large_image',
+      title: post.title,
+      description: post.summary,
+      images: imageList,
+    },
+  }
+}
 
 export const generateStaticParams = async () => {
   const paths = allBlogs.map((p) => ({ slug: p.slug.split('/') }))

app/blog/page.tsx

@@ -2,9 +2,12 @@ import ListLayout from '@/layouts/ListLayout'
 import { sortedBlogPost } from 'pliny/utils/contentlayer'
 import { allBlogs } from 'contentlayer/generated'
 import type { Blog } from 'contentlayer/generated'
+import { genPageMetadata } from 'app/seo'
 
 const POSTS_PER_PAGE = 5
 
+export const metadata = genPageMetadata({ title: 'Blog' })
+
 export default function BlogPage() {
   const posts = sortedBlogPost(allBlogs) as Blog[]
   const pageNumber = 1

app/layout.tsx

@@ -8,14 +8,61 @@ import SectionContainer from '@/components/SectionContainer'
 import Footer from '@/components/Footer'
 import siteMetadata from '@/data/siteMetadata'
 import { ThemeProviders } from './theme-providers'
+import { Metadata } from 'next'
 
 const inter = Inter({
   subsets: ['latin'],
 })
 
+export const metadata: Metadata = {
+  metadataBase: new URL(siteMetadata.siteUrl),
+  title: {
+    default: siteMetadata.title,
+    template: `%s | ${siteMetadata.title}`,
+  },
+  description: siteMetadata.description,
+  openGraph: {
+    title: siteMetadata.title,
+    description: siteMetadata.description,
+    url: './',
+    siteName: siteMetadata.title,
+    images: [siteMetadata.socialBanner],
+    locale: 'en_US',
+    type: 'website',
+  },
+  alternates: {
+    canonical: './',
+  },
+  robots: {
+    index: true,
+    follow: true,
+    googleBot: {
+      index: true,
+      follow: true,
+      'max-video-preview': -1,
+      'max-image-preview': 'large',
+      'max-snippet': -1,
+    },
+  },
+  twitter: {
+    title: siteMetadata.title,
+    card: 'summary_large_image',
+    images: [siteMetadata.socialBanner],
+  },
+}
+
 export default function RootLayout({ children }: { children: React.ReactNode }) {
   return (
     <html lang={siteMetadata.language} className={`${inter.className} scroll-smooth`}>
+      <link rel="apple-touch-icon" sizes="76x76" href="/static/favicons/apple-touch-icon.png" />
+      <link rel="icon" type="image/png" sizes="32x32" href="/static/favicons/favicon-32x32.png" />
+      <link rel="icon" type="image/png" sizes="16x16" href="/static/favicons/favicon-16x16.png" />
+      <link rel="manifest" href="/static/favicons/site.webmanifest" />
+      <link rel="mask-icon" href="/static/favicons/safari-pinned-tab.svg" color="#5bbad5" />
+      <meta name="msapplication-TileColor" content="#000000" />
+      <meta name="theme-color" media="(prefers-color-scheme: light)" content="#fff" />
+      <meta name="theme-color" media="(prefers-color-scheme: dark)" content="#000" />
+      <link rel="alternate" type="application/rss+xml" href="/feed.xml" />
       <body className="bg-white text-black antialiased dark:bg-gray-900 dark:text-white">
         <ThemeProviders>
           {/* <Analytics analyticsConfig={siteMetadata.analytics} /> */}

app/projects/page.tsx

@@ -1,5 +1,8 @@
 import projectsData from '@/data/projectsData'
 import Card from '@/components/Card'
+import { genPageMetadata } from 'app/seo'
+
+export const metadata = genPageMetadata({ title: 'Projects' })
 
 export default function Projects() {
   return (

app/seo.tsx

@@ -0,0 +1,28 @@
+import { Metadata } from 'next'
+import siteMetadata from '@/data/siteMetadata'
+
+interface PageSEOProps {
+  title: string
+  description?: string
+  image?: string
+}
+
+export function genPageMetadata({ title, description, image }: PageSEOProps): Metadata {
+  return {
+    title,
+    openGraph: {
+      title: `${title} | ${siteMetadata.title}`,
+      description: description || siteMetadata.description,
+      url: './',
+      siteName: siteMetadata.title,
+      images: image ? [image] : [siteMetadata.socialBanner],
+      locale: 'en_US',
+      type: 'website',
+    },
+    twitter: {
+      title: `${title} | ${siteMetadata.title}`,
+      card: 'summary_large_image',
+      images: image ? [image] : [siteMetadata.socialBanner],
+    },
+  }
+}

app/tags/page.tsx

@@ -2,9 +2,11 @@ import { getAllTags } from 'pliny/utils/contentlayer'
 import Link from '@/components/Link'
 // import { PageSEO } from '@/components/SEO'
 import Tag from '@/components/Tag'
-import siteMetadata from '@/data/siteMetadata'
 import { kebabCase } from 'pliny/utils/kebabCase'
 import { allBlogs } from 'contentlayer/generated'
+import { genPageMetadata } from 'app/seo'
+
+export const metadata = genPageMetadata({ title: 'Tags', description: 'Things I blog about' })
 
 export default async function Page() {
   const tags = await getAllTags(allBlogs)

layouts/AuthorLayout.tsx

@@ -2,7 +2,6 @@ import { ReactNode } from 'react'
 import type { Authors } from 'contentlayer/generated'
 import SocialIcon from '@/components/social-icons'
 import Image from '@/components/Image'
-// import { PageSEO } from '@/components/SEO'
 
 interface Props {
   children: ReactNode
@@ -14,7 +13,6 @@ export default function AuthorLayout({ children, content }: Props) {
 
   return (
     <>
-      {/* <PageSEO title={`About - ${name}`} description={`About me - ${name}`} /> */}
       <div className="divide-y divide-gray-200 dark:divide-gray-700">
         <div className="space-y-2 pb-8 pt-6 md:space-y-5">
           <h1 className="text-3xl font-extrabold leading-9 tracking-tight text-gray-900 dark:text-gray-100 sm:text-4xl sm:leading-10 md:text-6xl md:leading-14">

layouts/PostLayout.tsx

@@ -9,7 +9,7 @@ import SectionContainer from '@/components/SectionContainer'
 import Image from '@/components/Image'
 import Tag from '@/components/Tag'
 import siteMetadata from '@/data/siteMetadata'
-// import ScrollTopAndComment from '@/components/ScrollTopAndComment'
+import ScrollTopAndComment from '@/components/ScrollTopAndComment'
 
 const editUrl = (path) => `${siteMetadata.siteRepo}/blob/master/data/${path}`
 const discussUrl = (path) =>
@@ -37,8 +37,7 @@ export default function PostLayout({ content, authorDetails, next, prev, childre
 
   return (
     <SectionContainer>
-      {/* <BlogSEO url={`${siteMetadata.siteUrl}/${path}`} authorDetails={authorDetails} {...content} /> */}
+      <ScrollTopAndComment />
-      {/* <ScrollTopAndComment /> */}
       <article>
         <div className="xl:divide-y xl:divide-gray-200 xl:dark:divide-gray-700">
           <header className="pt-6 xl:pb-6">

layouts/PostSimple.tsx

@@ -1,89 +1,87 @@
-// import { useState, ReactNode } from 'react'
+import { useState, ReactNode } from 'react'
-// import { Comments } from 'pliny/comments'
+import { Comments } from 'pliny/comments'
-// import { formatDate } from 'pliny/utils/formatDate'
+import { formatDate } from 'pliny/utils/formatDate'
-// import { CoreContent } from 'pliny/utils/contentlayer'
+import { CoreContent } from 'pliny/utils/contentlayer'
-// import type { Blog } from 'contentlayer/generated'
+import type { Blog } from 'contentlayer/generated'
-// import Link from '@/components/Link'
+import Link from '@/components/Link'
-// import PageTitle from '@/components/PageTitle'
+import PageTitle from '@/components/PageTitle'
-// import SectionContainer from '@/components/SectionContainer'
+import SectionContainer from '@/components/SectionContainer'
-// // import { BlogSEO } from '@/components/SEO'
+import siteMetadata from '@/data/siteMetadata'
-// import siteMetadata from '@/data/siteMetadata'
+import ScrollTopAndComment from '@/components/ScrollTopAndComment'
-// import ScrollTopAndComment from '@/components/ScrollTopAndComment'
 
-// interface LayoutProps {
+interface LayoutProps {
-//   content: CoreContent<Blog>
+  content: CoreContent<Blog>
-//   children: ReactNode
+  children: ReactNode
-//   next?: { path: string; title: string }
+  next?: { path: string; title: string }
-//   prev?: { path: string; title: string }
+  prev?: { path: string; title: string }
-// }
+}
 
-// export default function PostLayout({ content, next, prev, children }: LayoutProps) {
+export default function PostLayout({ content, next, prev, children }: LayoutProps) {
-//   const [loadComments, setLoadComments] = useState(false)
+  const [loadComments, setLoadComments] = useState(false)
 
-//   const { path, slug, date, title } = content
+  const { path, slug, date, title } = content
 
-//   return (
+  return (
-//     <SectionContainer>
+    <SectionContainer>
-//       {/* <BlogSEO url={`${siteMetadata.siteUrl}/${path}`} {...content} /> */}
+      <ScrollTopAndComment />
-//       <ScrollTopAndComment />
+      <article>
-//       <article>
+        <div>
-//         <div>
+          <header>
-//           <header>
+            <div className="space-y-1 border-b border-gray-200 pb-10 text-center dark:border-gray-700">
-//             <div className="space-y-1 border-b border-gray-200 pb-10 text-center dark:border-gray-700">
+              <dl>
-//               <dl>
+                <div>
-//                 <div>
+                  <dt className="sr-only">Published on</dt>
-//                   <dt className="sr-only">Published on</dt>
+                  <dd className="text-base font-medium leading-6 text-gray-500 dark:text-gray-400">
-//                   <dd className="text-base font-medium leading-6 text-gray-500 dark:text-gray-400">
+                    <time dateTime={date}>{formatDate(date, siteMetadata.locale)}</time>
-//                     <time dateTime={date}>{formatDate(date, siteMetadata.locale)}</time>
+                  </dd>
-//                   </dd>
+                </div>
-//                 </div>
+              </dl>
-//               </dl>
+              <div>
-//               <div>
+                <PageTitle>{title}</PageTitle>
-//                 <PageTitle>{title}</PageTitle>
+              </div>
-//               </div>
+            </div>
-//             </div>
+          </header>
-//           </header>
+          <div className="grid-rows-[auto_1fr] divide-y divide-gray-200 pb-8 dark:divide-gray-700 xl:divide-y-0">
-//           <div className="grid-rows-[auto_1fr] divide-y divide-gray-200 pb-8 dark:divide-gray-700 xl:divide-y-0">
+            <div className="divide-y divide-gray-200 dark:divide-gray-700 xl:col-span-3 xl:row-span-2 xl:pb-0">
-//             <div className="divide-y divide-gray-200 dark:divide-gray-700 xl:col-span-3 xl:row-span-2 xl:pb-0">
+              <div className="prose max-w-none pb-8 pt-10 dark:prose-dark">{children}</div>
-//               <div className="prose max-w-none pb-8 pt-10 dark:prose-dark">{children}</div>
+            </div>
-//             </div>
+            {siteMetadata.comments && (
-//             {siteMetadata.comments && (
+              <div className="pb-6 pt-6 text-center text-gray-700 dark:text-gray-300" id="comment">
-//               <div className="pb-6 pt-6 text-center text-gray-700 dark:text-gray-300" id="comment">
+                {!loadComments && (
-//                 {!loadComments && (
+                  <button onClick={() => setLoadComments(true)}>Load Comments</button>
-//                   <button onClick={() => setLoadComments(true)}>Load Comments</button>
+                )}
-//                 )}
+                {loadComments && <Comments commentsConfig={siteMetadata.comments} slug={slug} />}
-//                 {loadComments && <Comments commentsConfig={siteMetadata.comments} slug={slug} />}
+              </div>
-//               </div>
+            )}
-//             )}
+            <footer>
-//             <footer>
+              <div className="flex flex-col text-sm font-medium sm:flex-row sm:justify-between sm:text-base">
-//               <div className="flex flex-col text-sm font-medium sm:flex-row sm:justify-between sm:text-base">
+                {prev && (
-//                 {prev && (
+                  <div className="pt-4 xl:pt-8">
-//                   <div className="pt-4 xl:pt-8">
+                    <Link
-//                     <Link
+                      href={`/${prev.path}`}
-//                       href={`/${prev.path}`}
+                      className="text-primary-500 hover:text-primary-600 dark:hover:text-primary-400"
-//                       className="text-primary-500 hover:text-primary-600 dark:hover:text-primary-400"
+                      aria-label={`Previous post: ${prev.title}`}
-//                       aria-label={`Previous post: ${prev.title}`}
+                    >
-//                     >
+                      &larr; {prev.title}
-//                       &larr; {prev.title}
+                    </Link>
-//                     </Link>
+                  </div>
-//                   </div>
+                )}
-//                 )}
+                {next && (
-//                 {next && (
+                  <div className="pt-4 xl:pt-8">
-//                   <div className="pt-4 xl:pt-8">
+                    <Link
-//                     <Link
+                      href={`/${next.path}`}
-//                       href={`/${next.path}`}
+                      className="text-primary-500 hover:text-primary-600 dark:hover:text-primary-400"
-//                       className="text-primary-500 hover:text-primary-600 dark:hover:text-primary-400"
+                      aria-label={`Next post: ${next.title}`}
-//                       aria-label={`Next post: ${next.title}`}
+                    >
-//                     >
+                      {next.title} &rarr;
-//                       {next.title} &rarr;
+                    </Link>
-//                     </Link>
+                  </div>
-//                   </div>
+                )}
-//                 )}
+              </div>
-//               </div>
+            </footer>
-//             </footer>
+          </div>
-//           </div>
+        </div>
-//         </div>
+      </article>
-//       </article>
+    </SectionContainer>
-//     </SectionContainer>
+  )
-//   )
+}
-// }