The Problem

• Setup the project and run the dev server you'll see this error

Error: [vite-env-only] Import denied
 - Denied by specifier pattern: /^node:/
 - Importer: index.html
 - Import: "node:fs"
 - Environment: client

• With the vite-env-plugin plugin used and enabled in the vite.config.ts file
• This plugin detects unknown imports of node:fs in an unknown file, index.html

This problem is not related to Intlayer

I think the main issue is that the plugin is too old and is no longer maintained for newer versions of Remix.js and ReactRouter.

A Solution ?

• Remove the plugin and trust your Intuition to not import server modules into client files :-)