Would custom GPT be beneficial?

My current work is very focused. I am building a component library using React Aria as a base. I’m wondering if there was a way I could focus ChatGPT to help with this.

Would a GPT be beneficial?

Seems that the knowledge files ability is how I would get it to focus on my needs.

I have seen some tools that will scrap a site to convert to a file (JSON?) that could be used as a knowledge file. Any recommendations? I would probably try to scrape the React Aria documentation site.

How about code? Is there a way to convert a repository into knowledge files?

Thanks for reading, would love any pointers suggestions.