OK! pyreading, the set of Python packages used by Arcalibre to handle things like spellchecking, PDF handling, and charset detection now builds on both Linux and Windows, all without any GitHub services!
Thanks to
@whitequark✧✦Catherine✦✧ for all the help with CI, and thanks to
@ddelemenyDamien de Lemeny for getting PDF metadata support up and running! ♥