rsnext/test/integration/chunking/next.config.js

const BundleAnalyzerPlugin = require('webpack-bundle-analyzer')
  .BundleAnalyzerPlugin
module.exports = {
  experimental: {
    granularChunks: true
  },
  webpack (config) {
    config.plugins = config.plugins || []
    config.plugins.push(
      new BundleAnalyzerPlugin({
        analyzerMode: 'disabled',
        generateStatsFile: true
      })
    )
    return config
  }
}