Oh no! Looks like it broke on GH Pages sometime in 2023 when the domain became unverified… but Meta should still own the domain!

Next.js 13.4 Next.js 13.4 moves App Router to stable, Turbopack to beta, and introduces experimental support for Server Actions.

Next.js 13.4

◆ App Router (Stable)
◆ Turbopack (Beta)
◆ Server Actions (Alpha)

https://nextjs.org/blog/next-13-4