@qwik.dev/core/dist/starters/features/postcss/postcss.config.js

An open source framework for building instant loading web apps at any scale, without the extra effort.

module.exports = {
  plugins: {
    autoprefixer: {},
    "postcss-preset-env": {
      stage: 3,
      features: {
        "nesting-rules": true,
      },
    },
  },
}