Pandoc supports citations using hs-citeproc. Is it possible to expose this functionality in yst easily? My first though is that it just means passing extra command-line arguments to Pandoc, but I haven't looked at the code at all.
Also, the new version of yst does not wrap sections in <div> tags as it used to do. It would be great to expose also the option --section-divs of pandoc to yst.