`printoverdues.sh` relies on `xhtml2pdf` for the conversion of a HTML document to a printable PDF version of said document. At time of writing, this tool dropped out of Debian (bookworm) and Ubuntu stable and sometimes older releases including backports and the like. Debian oldstable still keeps it, but no upstream releases beyond. This may endanger the functionality in Koha upstream. Possible solutions: - Manual installation outside the package management (and bugfixing) of the distribution via `pip`. That would also require a suitable documentation. - Use an alternative tool chain within the distributions (e.g. pandoc, if heading for a swiss army knife of format transformations. For PDF pandoc would require latex as "helper"). Note that `printoverdues.sh` is referred to explicitly in the implementation checklist.