diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 1dce12f..896c35d 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -44,7 +44,12 @@ jobs:
           cache: 'npm'
 
       - name: Configure Pages
+        # enablement: turn Pages on (build type = GitHub Actions) via the API if
+        # it isn't already, so the deploy step doesn't fail with
+        # "Deployment failed, try again later".
         uses: actions/configure-pages@v5
+        with:
+          enablement: true
 
       # --ignore-scripts skips husky install; no hooks needed to build docs.
       - run: npm ci --ignore-scripts
diff --git a/docs/.vitepress/config.mts b/docs/.vitepress/config.mts
index 4814064..9948629 100644
--- a/docs/.vitepress/config.mts
+++ b/docs/.vitepress/config.mts
@@ -3,7 +3,10 @@ import { defineConfig } from 'vitepress';
 export default defineConfig({
   title: 'ootk',
   description: 'Orbital Object Toolkit - satellite propagation, orbit determination, sensors, and maneuver planning in TypeScript',
-  base: '/ootk/',
+  // Served at the root of the custom domain (ootk.kruczeklabs.com), so base is
+  // '/'. If you ever drop the custom domain and serve at thkruz.github.io/ootk/,
+  // change this back to '/ootk/'.
+  base: '/',
   // README.md stays for GitHub folder browsing; index.md is the site home
   srcExclude: ['README.md'],
   themeConfig: {
diff --git a/docs/public/CNAME b/docs/public/CNAME
new file mode 100644
index 0000000..12b3a02
--- /dev/null
+++ b/docs/public/CNAME
@@ -0,0 +1 @@
+ootk.kruczeklabs.com