diff --git a/apps/blog/package.json b/apps/blog/package.json
index dad6bb49e2..b5eacecc91 100644
--- a/apps/blog/package.json
+++ b/apps/blog/package.json
@@ -30,6 +30,7 @@
     "react": "catalog:",
     "react-dom": "catalog:",
     "react-tweet": "catalog:",
+    "posthog-js": "catalog:",
     "remark-directive": "catalog:",
     "zod": "catalog:"
   },
diff --git a/apps/blog/public/fonts/MonaSansMonoVF[wght].woff2 b/apps/blog/public/fonts/MonaSansMonoVF[wght].woff2
new file mode 100644
index 0000000000..f4ccd616f1
Binary files /dev/null and b/apps/blog/public/fonts/MonaSansMonoVF[wght].woff2 differ
diff --git a/apps/blog/src/instrumentation-client.ts b/apps/blog/src/instrumentation-client.ts
new file mode 100644
index 0000000000..be223868f3
--- /dev/null
+++ b/apps/blog/src/instrumentation-client.ts
@@ -0,0 +1,13 @@
+import posthog from "posthog-js";
+
+posthog.init(process.env.NEXT_PUBLIC_POSTHOG_KEY!, {
+  api_host: process.env.NEXT_PUBLIC_POSTHOG_HOST,
+  capture_pageview: "history_change",
+  defaults: "2025-11-30",
+  loaded: (posthog) => {
+    posthog.register({
+      site_name: "mono-blog",
+      environment: "production",
+    });
+  },
+});
diff --git a/package.json b/package.json
index dc88cb02f0..d474e28344 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "oxlint": "catalog:",
     "turbo": "catalog:"
   },
-  "packageManager": "pnpm@10.30.0",
+  "packageManager": "pnpm@10.30.0+sha512.2b5753de015d480eeb88f5b5b61e0051f05b4301808a82ec8b840c9d2adf7748eb352c83f5c1593ca703ff1017295bc3fdd3119abb9686efc96b9fcb18200937",
   "pnpm": {
     "overrides": {
       "shiki": "3.22.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e81fa6f500..acf93535e2 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -276,6 +276,9 @@ importers:
       npm-to-yarn:
         specifier: 'catalog:'
         version: 3.0.1
+      posthog-js:
+        specifier: 'catalog:'
+        version: 1.359.1
       react:
         specifier: 'catalog:'
         version: 19.2.4