[leerob]

This is Next.js in the "Pages Router" world (e.g. everything prior to 13.4). Past 13.4, you can also use the "App Router", which is kind of like a framework in a framework. It uses React Server Components, which can run server-only without hydration. Thematically similar to islands.

[Capricorn2481]

Yes, these are pretty new though and I hear some people are having issues with the app router. Astro came before this release