Steps to reproduce:

Enviroment: windows 11, node 22.4.0

1. Create vue project with vite via npx create-vite
2. npm install --save-dev mlut @mlut/plugins sass-embedded sass
3. Add mlut in vite.config.ts like in documentation
4. Create output css file

And after start the dev server i get:

I added @use '@mlut/core'; but nothing changes