Your code says why.
We watch the rest.

When code exists because of a GitHub issue or PR, say so in a comment. Watchnote finds it in your repos, emails you when the issue or PR changes, with your comment at the top, and stops once you delete it.

// vercel/next.js#58112: Blocks our upgrade to v15.
// Drop this middleware shim once it's fixed.
export const config = { runtime: "nodejs" };

Every comment style that works