I have been trying to just fill out some stuff for a template on the NextJs website called magic-portfolio, I have just been filling it out as said in the documentation but once I try to use npx next build it just gives compilation errors like mdx is not definded more over there are like 15 other problem I have probably not discovered yet like how to even run a NextJs site on GitHub pages which will be its own headache basically I am stuck in integration hell and I really want some help to get out of it. Here is some more info:
link to template: https://vercel.com/templates/next.js/magic-portfolio-for-next-js
link to my repo: https://github.com/Licnex/Licnex
link to the website I am deploying it on: https://licnex.github.io/Licnex/