A fully custom webpack config file for a multi page LWC OSS app

webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const LwcWebpackPlugin = require('lwc-webpack-plugin');
const CopyPlugin = require('copy-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');

module.exports = {
    entry: {
        index: './src/index.js',
        about: './src/about.js'
    },
    output: {
        path: path.resolve(__dirname, './dist'),
        filename: '[name].bundle.[contenthash].js',
        publicPath: '/'
    },
    plugins: [
        new CleanWebpackPlugin(),
        new LwcWebpackPlugin(),
        new HtmlWebpackPlugin({
            template: './src/about.html',
            filename: 'about/index.html',
            chunks: ['about']
        }),
        new HtmlWebpackPlugin({
            template: './src/index.html',
            filename: 'index-new.html',
            chunks: ['index']
        }),
        new CopyPlugin({
            patterns: [
                { from: 'src/resources/', to: 'resources/' }
            ]
        })
    ],
    module: {
        rules: [
            {
                test: /\.m?js$/,
                exclude: /node_modules/,
                use: [
                    {
                        loader: 'babel-loader',
                        options: {
                            presets: ['@babel/preset-env']
                        }
                    }
                ]
            }
        ]
    },
    stats: 'errors-only'
};