Webpack 3 config for simple Django/Flask project with Autoprefixer, PostCSS, SCSS style files, Vue.js and Babel

.babelrc

{
  "presets": ["@babel/preset-env"]
}

package.json

{
  "name": "my_project",
  "version": "1.0.0",
  "description": "My project description.",
  "engines": {
    "node": ">=7.0"
  },
  "author": "Vic Shóstak",
  "license": "MIT",
  "repository": {},
  "scripts": {
    "build": "webpack --config webpack.config.js --optimize-minimize --display-error-details --hide-modules --progress",
    "watch": "webpack --config webpack.config.js --watch --hide-modules --progress"
  },
  "browserslist": [
    "> 1%",
    "last 2 versions"
  ],
  "dependencies": {
    "axios": "^0.17.1",
    "bulma": "^0.6.1",
    "bulma-checkradio": "^0.1.4",
    "bulma-divider": "^0.1.0",
    "vue": "^2.5.10",
    "webfontloader": "^1.6.28"
  },
  "devDependencies": {
    "@babel/core": "^7.0.0-beta.34",
    "@babel/preset-env": "^7.0.0-beta.34",
    "autoprefixer": "^7.2.3",
    "babel-loader": "^8.0.0-beta.0",
    "css-loader": "^0.28.7",
    "extract-text-webpack-plugin": "^3.0.2",
    "node-sass": "^4.7.2",
    "postcss-loader": "^2.0.9",
    "sass-loader": "^6.0.6",
    "style-loader": "^0.18.2",
    "vue-loader": "^13.5.0",
    "vue-style-loader": "^3.0.3",
    "vue-template-compiler": "^2.5.10",
    "webpack": "^3.10.0"
  }
}

postcss.config.js

module.exports = {
  plugins: [
    require('autoprefixer')
  ]
}

webpack.config.js

const path = require('path')
const webpack = require('webpack')
const ExtractTextPlugin = require("extract-text-webpack-plugin")

module.exports = {
  entry: {
    'js/script.min.js': './static/assets/js/script.js',
    'css/style.min.css': './static/assets/scss/style.scss'
  },
  output: {
    path: path.resolve(__dirname, './static'),
    filename: '[name]'
  },
  module: {
    loaders: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: "babel-loader",
        options: {
          presets: ['@babel/preset-env']
        }
      },
      {
        test: /\.(css|scss)$/,
        use: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: [
            {
              loader: 'css-loader',
              options: {
                minimize: true
              }
            },
            {loader: 'postcss-loader'},
            {loader: 'sass-loader'}
          ]
        })
      },
      {
        test: /\.vue$/,
        loader: "vue-loader",
        options: {
          loaders: {
            scss: 'vue-style-loader!css-loader!sass-loader'
          }
        }
      }
    ]
  },
  resolve: {
    alias: {
      'vue$':
        'vue/dist/vue.esm.js'
    }
  },
  plugins: [
    new ExtractTextPlugin('[name]'),
    new webpack.LoaderOptionsPlugin({
      vue: {
        loaders: {
          scss: 'style!css!scss'
        }
      }
    })
  ]
}