diff --git a/app/page.tsx b/app/page.tsx
index 6f6042e..6b31bd4 100644
--- a/app/page.tsx
+++ b/app/page.tsx
@@ -140,6 +140,16 @@ export default function Home() {
               {t.footer.email}
             </a>
           </p>
+          <p className="mt-2 font-mono text-xs text-gray-400 dark:text-gray-500">
+            <a
+              href={`https://forgejo.riotpiao.com/rock/riotpiao.com/commit/${process.env.NEXT_PUBLIC_COMMIT_SHA}`}
+              target="_blank"
+              rel="noopener noreferrer"
+              className="hover:text-blue-600 dark:hover:text-blue-400"
+            >
+              {process.env.NEXT_PUBLIC_COMMIT_SHA}
+            </a>
+          </p>
         </div>
       </footer>
 
diff --git a/next.config.js b/next.config.js
index bff331f..5a6988b 100644
--- a/next.config.js
+++ b/next.config.js
@@ -1,7 +1,14 @@
+const { execSync } = require('child_process');
+
+const commitSha = process.env.COMMIT_SHA
+  || (() => { try { return execSync('git rev-parse --short HEAD').toString().trim(); } catch { return 'dev'; } })();
+
 /** @type {import('next').NextConfig} */
 const nextConfig = {
   output: 'standalone',
+  env: {
+    NEXT_PUBLIC_COMMIT_SHA: commitSha,
+  },
 };
 
 module.exports = nextConfig;
-// trigger ci 2026年 8月31日 星期一 17时28分38秒 PDT