I don't see any process manager here like PM2, so what if Next crashes?

I don't the --production flag on npm install

Also, no nginx proxy

Also for hot-reloading to work with Next and Docker you'll need to add this to the config

webpackDevMiddleware: config => {
  config.watchOptions = {
    poll: 1000,
    aggregateTimeout: 300,
  }
  return config
}

And add volumes to the docker-compose.

I got Permission denied error.

#17 1.813 > Build error occurred
#17 1.816 Error: EACCES: permission denied, open '/app/.next/cache/config.json.3288435009'
#17 1.816 at Object.openSync (node:fs:585:3)
#17 1.816 at Function.writeFileSync [as sync] (/app/node_modules/next/dist/compiled/conf/index.js:15:23035)
#17 1.816 at Conf.set store [as store] (/app/node_modules/next/dist/compiled/conf/index.js:1:109636)