Cloudflare Pages node version error

Issue when deploy to Cloudflare first time

It’s required to force a node version on Cloudflare pages to prevent node version error

Node.js v12.18.0 is not supported by Astro!
Please upgrade Node.js to a supported version: ">=16.12.0"

to fix this I need to include a new file in the root folder naed .nvmrc with the follwing contents

v16.20.0