app/layout.tsx

@@ -32,6 +32,9 @@ export const metadata: Metadata = {
   },
   alternates: {
     canonical: './',
+    types: {
+      'application/rss+xml': `${siteMetadata.siteUrl}/feed.xml`,
+    },
   },
   robots: {
     index: true,

app/seo.tsx

@@ -5,9 +5,11 @@ interface PageSEOProps {
   title: string
   description?: string
   image?: string
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  [key: string]: any
 }
 
-export function genPageMetadata({ title, description, image }: PageSEOProps): Metadata {
+export function genPageMetadata({ title, description, image, ...rest }: PageSEOProps): Metadata {
   return {
     title,
     openGraph: {
@@ -24,5 +26,6 @@ export function genPageMetadata({ title, description, image }: PageSEOProps): Me
       card: 'summary_large_image',
       images: image ? [image] : [siteMetadata.socialBanner],
     },
+    ...rest,
   }
 }

app/tags/[tag]/page.tsx

@@ -8,7 +8,16 @@ import { Metadata } from 'next'
 
 export async function generateMetadata({ params }: { params: { tag: string } }): Promise<Metadata> {
   const tag = params.tag
-  return genPageMetadata({ title: tag, description: `${siteMetadata.title} ${tag} tagged content` })
+  return genPageMetadata({
+    title: tag,
+    description: `${siteMetadata.title} ${tag} tagged content`,
+    alternates: {
+      canonical: './',
+      types: {
+        'application/rss+xml': `${siteMetadata.siteUrl}/tags/${tag}/feed.xml`,
+      },
+    },
+  })
 }
 
 export const generateStaticParams = async () => {