It's not very polished, since I just hacked it together, but it gives the general idea, that you document the citation information once, and then plug it in, with different styles and formatting.
You can then write an endnote that is also a footnote or an in-line reference within the publication. Or cite a LLM result with proper documentation of how you achieved that result.
I put the simple formatting directive at the top, for people who will be like TL;DR.