const withCSS = require('@zeit/next-css') const webpack = require('webpack') module.exports = withCSS({ onDemandEntries: { // Make sure entries are not getting disposed. maxInactiveAge: 1000 * 60 * 60 }, cssModules: true, serverRuntimeConfig: { mySecret: 'secret' }, publicRuntimeConfig: { staticFolder: '/static' }, webpack (config, {buildId}) { config.plugins.push( new webpack.DefinePlugin({ 'process.env.CONFIG_BUILD_ID': JSON.stringify(buildId) }) ) return config } })