diff --git a/site/astro.config.mjs b/site/astro.config.mjs
index 3e7f53f..9727a17 100644
--- a/site/astro.config.mjs
+++ b/site/astro.config.mjs
@@ -14,10 +14,9 @@ const GITHUB = 'https://github.com/mikkel-bergmann/podscript';
 
 // https://astro.build/config
 export default defineConfig({
-  // Project GitHub Pages: served under /podscript. If a custom domain is added
-  // later, drop `base` (and update BASE in scripts/sync-docs.mjs) and add a CNAME.
-  site: 'https://mikkel-bergmann.github.io',
-  base: '/podscript',
+  // Served at the root of the custom domain (site/public/CNAME). If you ever revert
+  // to project GitHub Pages, set base: '/podscript' and BASE in scripts/sync-docs.mjs.
+  site: 'https://podscript.dev',
   integrations: [
     starlight({
       title: 'Podscript',
diff --git a/site/public/CNAME b/site/public/CNAME
new file mode 100644
index 0000000..f59b3b7
--- /dev/null
+++ b/site/public/CNAME
@@ -0,0 +1 @@
+podscript.dev
diff --git a/site/scripts/sync-docs.mjs b/site/scripts/sync-docs.mjs
index 074cd1a..1775cfa 100644
--- a/site/scripts/sync-docs.mjs
+++ b/site/scripts/sync-docs.mjs
@@ -12,8 +12,9 @@ import { readFileSync, writeFileSync, mkdirSync, readdirSync } from 'node:fs';
 import { dirname } from 'node:path';
 
 // Keep in sync with `base` in astro.config.mjs. In-content markdown links are not
-// base-prefixed by Astro, so we bake the base into internal links here.
-const BASE = '/podscript';
+// base-prefixed by Astro, so we bake the base into internal links here. Empty for
+// the custom domain (served at root); '/podscript' for project GitHub Pages.
+const BASE = '';
 const GITHUB = 'https://github.com/mikkel-bergmann/podscript';
 
 /** Drop a leading SPDX HTML-comment header, if present. */
diff --git a/site/src/content/docs/index.mdx b/site/src/content/docs/index.mdx
index b5a171a..6574aef 100644
--- a/site/src/content/docs/index.mdx
+++ b/site/src/content/docs/index.mdx
@@ -6,11 +6,11 @@ hero:
   tagline: Podcasts as code.
   actions:
     - text: Get started
-      link: /podscript/guide/authoring/
+      link: /guide/authoring/
       icon: right-arrow
       variant: primary
     - text: Read the spec
-      link: /podscript/reference/spec/
+      link: /reference/spec/
       variant: secondary
     - text: GitHub
       link: https://github.com/mikkel-bergmann/podscript
@@ -62,4 +62,4 @@ narration beginning exactly as the fade starts and continuing over the tail.
 </CardGrid>
 
 > **This project is the specification**, its conformance suite, and examples — not an
-> implementation. The normative document is the [specification](/podscript/reference/spec/).
+> implementation. The normative document is the [specification](/reference/spec/).