The file sharing aspect of this seems to be the least difficult portion of the problem. I’d love to see something that passes muster, to a librarian, on the cat

The file sharing aspect of this seems to be the least difficult portion of the problem. I’d love to see something that passes muster, to a librarian, on the catalog front. Sort of a wikipedia or open street map of library catalogs. The resources themselves might be found anywhere (physically at a library, in digital form for purchase, downloadable via torrent, etc.). A true library of babel. If I knew more about library science, I suspect catalog federation protocols all exist, but there is probably work to be done in making such a thing resilient.