Vercel Project Config

{
  "headers": [
    {
      "source": "/(.*)",
      "headers": [
        { "key": "X-Frame-Options", "value": "DENY" },
        { "key": "X-XSS-Protection", "value": "1" },
        { "key": "X-Content-Type-Options", "value": "nosniff" }
      ]
    }
  ]
}

if [[ "$VERCEL_GIT_COMMIT_REF" == "gh-pages"  ]] ; then  exit 0; else exit 1; fi;

includeFiles does not work for Next.js or some frameworks

How to read files in Vercel Functions

Learn how to import, read, and store files inside Vercel Functions.

https://vercel.com/guides/how-can-i-use-files-in-serverless-functions

Vercel.json's "includeFiles" with `pages/api` serverless functions · vercel next.js · Discussion #14807

Lets say i had two files in the root of my next.js project: random.txt and somedir/random2.txt. How could I access those inside of a src/pages/api/function.js file? Whatever I do I can't seem t...

https://github.com/vercel/next.js/discussions/14807

CLI

To allow for interacting with the platform using the terminal or an automated system, Vercel offers a command-line interface called Vercel CLI. If you'd like to interface with the platform programmatically, take a look at the REST API. Vercel CLI provides a set of commands that allow you to deploy and manage your projects.

https://vercel.com/docs/cli#project/headers