I recently discovered and recommend to take a look at vite-plugin-ssr https://vite-plugin-ssr.com/.

Vite-plugin-ssr describes itself as "Like Next.js/Nuxt but as do-one-thing-do-it-well Vite plugin.". I use it for https://github.com/inlang/inlang. The control and ownership of the underlying rendering techniques is truly relieving and enables us to run static sites + a high dynamic (client-side rendered) app in one monolith instead of the typical static site + app.domain.com split.