BibTeX, biblatex and biber ⇒ citestyle=stickynote. Is it possible to implement such a thing?

[lockywolf]

Hello, everyone.

Citations are a thing that may be extremely useful for a newbie (at least I like seeing full paper author names and the paper title right where it is cited), and very annoying for experienced readers, who already know where ideas come from and for whom long citations interrupt their line of thought.

However, pdf supports a limited form of interactivity, called "sticky notes" or "annotations". (Shown on the attached image.)

latex_biber_Screenshot_2021-05-23_21-35-22.png (132.41 KiB) Viewed 6540 times

The annotation on the screenshot I created myself, manually. However, it came to me that this could be quite a user-friendly way of adding "collapsible" information to citations. For the experienced readers, the citations would be kept short (Batu, Fischer et al.), and new readers would be able to click at the annotation and get the full text of the citation, possibly with biber commenst, and such.

How hard would be to implement such a package for latex?