Add ckeditor plugins

Hi! is there any guide or post with steps to add plugins to the CKEditor 5? I got the classic build going, but I wanted the fonts plugin (or maybe use the decoupled editor instead of the classic).
Guide I followed and worked for the classic one: Field Registering - Strapi Developer Documentation
when I try adding plugins I get errors like:
Error codes - CKEditor 5 Documentation (edited)

I would appreciate any help, since the ckeditor is a great upgrade, and adding the plugins would make it even better!

System Information
  • Strapi Version:
  • Operating System:
  • Database:
  • Node Version:
  • NPM Version:
  • Yarn Version:

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