Neos CMS + webpack-dev-server

package.json

{
  "scripts": {
    "build": "webpack",
    "production": "NODE_ENV=production webpack",
    "watch": "./flow server:run & webpack --watch",
    "serve": "FLOW_CONTEXT=Development/Webpack ./flow server:run & webpack-dev-server --color"
  }
}

Settings.yaml

# Configuration/Development/Webpack/Settings.yaml

Neos:
  Flow:
    http:
      baseUri: 'http://localhost:3000/'

webpack.config.js

module.exports = {
  
  // [...]
  
  devServer: {
        publicPath: '/_Resources/Static/Packages/Your.Site/bundle/', // webpack output is served from this path
        port: 3000,
        proxy: [
            {
                context: "/",
                target: "http://127.0.0.1:8081",
            }
        ]
    }
};