NextJs: bundle compilation time in development

example-webpackbar-next.config.js

const WebpackBar = require('webpackbar')

module.exports = {
  webpack: (config, { buildId, dev, isServer, defaultLoaders, webpack }) => {
    // Note: we provide webpack above so you should not `require` it
    // Perform customizations to webpack config
    config.plugins.push(new WebpackBar({
      name: 'Bundle'
    }))

    // Important: return the modified config
    return config
  }
}