diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..dd33554
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.obsidian
diff --git a/site/config/next.config.js b/site/config/next.config.js
new file mode 100644
index 0000000..f9117e3
--- /dev/null
+++ b/site/config/next.config.js
@@ -0,0 +1,10 @@
+module.exports = {
+  async rewrites() {
+    return [
+      {
+        source: '/concepts/:page(.md)',
+        destination: '/concepts/:page',
+      },
+    ]
+  },
+}
diff --git a/site/pages/_app.js b/site/pages/_app.js
index 9eb4397..73bd526 100644
--- a/site/pages/_app.js
+++ b/site/pages/_app.js
@@ -6,6 +6,7 @@ import { ThemeProvider } from 'next-themes'
 
 import '../styles/global.css'
 import siteConfig from '../config/siteConfig.js'
+import nextConfig from '../config/next.config.js'
 import Layout from '../components/Layout'
 import MdxPage from '../components/MDX'
 import * as gtag from '../lib/gtag'