{Boris Veytsman}
{Extending Peter Flynn's \tbcode{bookshelf} package for multilanguage libraries}
{In the darkest days of \acro{COVID} Peter Flynn wrote a nice package that
created a colorful background for the virtual meetings.  It takes the
list of your electronic books and makes the image of bookshelves with
these books with random colors and fonts for the spines.

I wanted to use this package, but I found out that it did not work well
with my virtual library, which included books in English, Ukrainian,
Russian, French, German, and other languages.  Thus I wrote the code
that determines, whether a given random font can typeset the given
spine, and either selects it or tries another random font.  In this
talk I discuss my additions, the limits of \XeTeX\ and Lua\TeX\ engines,
and the tricks to overcome them.
}