update :3

app/api/lastfm/route.ts

@@ -0,0 +1,12 @@
+export async function GET() {
+  const res = await fetch(
+    `http://ws.audioscrobbler.com/2.0/?method=user.getrecenttracks&user=yae_miku&api_key=${process.env.API_KEY}&format=json&limit=1`,
+    {
+      headers: {
+        'Content-Type': 'application/json',
+      },
+    }
+  );
+  const data = await res.json();
+  return Response.json(data.recenttracks.track[0]);
+}