UPDATE: the @internetarchive has formally submitted their opening brief in their appeal. https://blog.archive.org/2023/12/15/internet-archive-defends-digital-rights-for-libraries/
@eff's Press Release is here: https://www.eff.org/press/releases/internet-archive-files-appeal-brief-defending-libraries-and-digital-lending-big
The formal brief #PDF is here: https://www.eff.org/files/2023/12/15/internet_archives_opening_brief_public.pdf