Today, I have migrated both Days and Nextmini websites from Next.js to TanStack Start.
It is a surprise that Codex only needs a few minutes to migrate each project. Since their respective documentation websites are already using Fumadocs and TanStack Start, this is a natural transition and a more seamless fit. As a new web framework, TanStack Start feels simpler and much faster than Next.js, and will be my choice for new projects going forward.