Simple npm setup to compile and post-process Sass files. Use by running `npm run watch-css`

package.json

{
  "scripts": {
    "build-css": "node-sass --include-path --source-map scss public/sass/application.sass public/css/styles.css",
    "post-css": "npx postcss public/css/styles.css --config postcss.config.js -o public/css/styles.min.css",
    "watch-css": "nodemon -e sass -x \"npm run build-css && npm run post-css\""
  }
}

// Node modules required: node-sass, nodemon, postcss-cli, autoprefixer, cssnano
// Setup guide: https://www.notion.so/Simple-npm-setup-to-compile-and-post-process-Sass-files-267dd76552de48359718c23b99259864

postcss.config.js

module.exports = {
    plugins: [
        require('autoprefixer'),
        require('cssnano')({
            preset: 'default',
        }),
    ],
};