astro/packages/integrations/vercel/README.md

@astrojs/vercel

Deploy your server-side rendered (SSR) Astro app to Vercel.

Use this integration in your Astro configuration file:

import { defineConfig } from 'astro/config';
import vercel from '@astrojs/vercel';

export default defineConfig({
	integrations: [netlify()]
});

After you build your site the .output/ folder will contain your server-side rendered app. Since this feature is still in beta, you'll need to add this Enviroment Variable to your Vercel project: ENABLE_FILE_SYSTEM_API=1

Now you can deploy!

vercel