How to use core components in nextjs version

I followed this guide to get nextjs version up an running:
https://keenthemes.com/metronic/tailwind/docs/getting-started/integration/nextjs

How I'm supose to use the core components in my nextjs code you don't explain that in your documentation.

You have this section that say to import global init:

const GlobalInit = dynamic(() => import('../components/GlobalInit'), { ssr: false });

<GlobalInit />

But you don´t explain how to use the initialized components