You can use the npx create-henris-project installer or do it manually:

Add the following to your nuxt.config.js within the module.export:

css: [
		src: '~assets/scss/app.scss',
		lang: 'scss'

To use the tools:

Create a symlink to the tools so you can use all henris settings and tools in components without adding unnecessary css.

build: {
	extend(config, { isDev, isClient }) {
		config.resolve.alias['~tools'] = 'assets/scss/tools/_index.scss';

Now you can use the full tools in a component and have access to all mixins, functions and defined global settings (pre/post).

<style lang="scss">
@import '~tools';