One way to do this would be to make a 2-way sync of bibliography between Tropy and Zotero, that way it would be easy to use the already great Word/LibreOffice plug-in for Zotero…
Another way would be to implement something like the Better BibTex add-in for Zotero, (citeproc or similar as alternatives) to export to a BibTex or CSL Json file, that would be updated when changes was made, and ask the Better BibTex devs to create something that autoread that file into Zotero (or maybe they even help with a 2-way feature)…
Just as a tips, the Markdown Notebook application Zettlr, use citeproc to read a Better BibTex file, to give a similar feature as the Zotero Word/LibreOffice plug-in…