WA en js para los problemas de nuxt con memoria Heap abajo sale como dejarlo en la seccion scripts de package.json

package.json

{
  "scripts": {
    "serve": "node --max-old-space-size=3072 ./workAround.js",
   }
}

workAround.js

const { Nuxt, Builder } = require('nuxt');
const bodyParser = require('body-parser');
const session = require('express-session');
const app = require('express')();

// Body parser, to access req.body
app.use(bodyParser.json());

// Sessions to create req.session
app.use(session({
  secret: 'super-secret-key',
  resave: false,
  saveUninitialized: false,
  cookie: { maxAge: 60000 },
}));


// We instantiate Nuxt.js with the options
const isProd = process.env.NODE_ENV === 'production';
const config = require('./nuxt.config.js');

config.dev = !isProd;
const nuxt = new Nuxt(config);
// No build in production
const promise = (isProd ? Promise.resolve() : new Builder(nuxt).build());
promise.then(() => {
  app.use(nuxt.render);
  app.listen(3000);
  console.log('Server is listening on http://localhost:3000'); // eslint-disable-line no-console
})
  .catch((error) => {
    console.error(error); // eslint-disable-line no-console
    process.exit(1);
  });