Claude improvements

astro.config.mjs

@@ -1,18 +1,52 @@
 import sitemap from '@astrojs/sitemap';
 import { defineConfig } from 'astro/config';
+import rehypeAutolinkHeadings from 'rehype-autolink-headings';
+import rehypeSlug from 'rehype-slug';
 
 export default defineConfig({
   site: 'https://schmelczer.dev',
   trailingSlash: 'always',
+  redirects: {
+    '/writing/': '/articles/',
+    '/writing/[slug]': '/articles/[slug]',
+  },
   integrations: [
     sitemap({
-      filter: (page) => !new URL(page).pathname.startsWith('/writing/'),
+      filter: (page) => {
+        const path = new URL(page).pathname;
+        return !path.startsWith('/writing/') && path !== '/404/';
+      },
+      serialize(item) {
+        return { ...item, changefreq: 'monthly' };
+      },
     }),
   ],
+  image: {
+    service: { entrypoint: 'astro/assets/services/sharp' },
+  },
   markdown: {
     shikiConfig: {
-      theme: 'github-light',
+      themes: {
+        light: 'github-light',
+        dark: 'github-dark',
+      },
+      defaultColor: false,
       wrap: false,
     },
+    rehypePlugins: [
+      rehypeSlug,
+      [
+        rehypeAutolinkHeadings,
+        {
+          behavior: 'append',
+          properties: {
+            className: ['heading-anchor'],
+            'aria-hidden': 'true',
+            tabIndex: -1,
+          },
+          content: { type: 'text', value: '#' },
+        },
+      ],
+    ],
   },
 });