Mostly read-only, with ocassional writes when we update the database/CMS. The writes handled by a webhook which hits the Cloudflare worker upon any update. Workers is so fast, the data and website is updated in milliseconds. We use Vercel's on demand revalidation.

Honestly, the real revolution at Vercel with NextJs in my opinion is the ability to easily use Edge functions now in any NextJs project. It's strange to me how so few developers use this, and understand how powerful the Edge is with Cloudflare. Even at Vercel itself they are focusing on the App folder and React Server Components (RSC). But, if you store everything at Edge and use Edge functions, everything is so incredibly fast, and easy to hook up/maintain that all the tooling around RSC is entirely useless.