The adapter is the lock-in

Placeholder copy. The structure is real; the words are not.

Astro builds two ways. Static output emits plain HTML, CSS and JavaScript that any host on earth can serve. Server output needs an adapter, and an adapter is a build-time plugin that compiles the site into one vendor’s runtime format.

That puts the vendor inside the application package, underneath everything, where no amount of deployment wrapping can reach it.

{
  "name": "reys-lab-web",
  "compatibility_date": "2026-09-19",
  "assets": {
    "directory": "../../apps/web/dist",
    "not_found_handling": "404-page"
  }
}

No main field: with assets and no script, the Worker is a pure static file host. The contract between the app and its deployment is the dist/ directory, which is the most portable interface available and the only one enforced by reality.