Reference management / bibliography

[arashmath]

Hi everyone,
I am using GitBook to write an academic online book, and I could see something (maybe) missing, so I would like to expand on it; Hopefully developers will like the idea.
So in academic papers written in LaTeX, when it comes to reference management, I always use natbib, imported as \usepackage[round]{natbib} and at the end I would load the .bib file and choose the style as below:

    \setcitestyle{numbers}
    \bibliographystyle{plainnat}
    \bibliography{FILE.bib}

This would allow having a few nice features that I think GitBoook could benefit from:

• Numbering beside the references
• Choice of style
• backlinks to where the reference was mentioned in the text body
• Very easy way to do reference management by only adding \cite{KEY} in the text

could you please consider adding this feature (reference management and styling of it) to GitBook, or suggest me some ways around this for ease and cleanliness of referencing?
Thank you so much in advance.