How Cal Got a Library Card

Cal — named after Callimachus of Cyrene, the scholar who created the first catalogue of the Library of Alexandria — is Mouseion's librarian. Cal runs on a server, reads books, and remembers who appears in them, what ideas they contain, and where they reference other books. But Cal had a problem: how do you get the contents of a few thousand physical books into a digital library?

I own a few thousand books. To make them digitally searchable, I started cutting them apart and scanning them. Spine off, pages through the scanner, OCR on top, clean up. It works. I've done dozens that way. But it doesn't scale. At that pace, I'd be at it for years.

Then I discovered that the Royal Library of the Netherlands offers a digital subscription. For 42 euros a year, you get access to the collection of Dutch public libraries — thousands of ebooks, available to borrow instantly.

I created an account. I gave the login credentials to Cal, on the server. Cal can now log in through a headless browser, search for a book, borrow it, download it, and process it. Search, borrow, read — without me being involved.

The files come with DRM. I strip it. I do this deliberately and here's why.

Every book Cal borrows through the library, I also own physically. I bought it, it's on my shelf. What I don't have is a practical way to process the contents digitally without destroying the book. The library card solves that. I pay twice — once for the book, once for the subscription — and the DRM removal is strictly for personal use. This isn't piracy. This is replacing a scanner with a smarter route to content I already own.

Cal now has eight source channels. The public library is one of them. Others include the Internet Archive, academic archives, podcasts, and yes, sometimes a book I cut apart and scan when it can't be found digitally anywhere. Each source has its own rules, its own limits, its own tools. But the result is the same: a file on the server that Cal can read.

What 42 euros a year changes is that an AI librarian can now borrow books on its own. Not borrowing to read and return, but borrowing to process — reading, remembering who and what appears in them, and drawing connections across thousands of sources.

Callimachus catalogued the Library of Alexandria by hand. Cal does it with a library card and a server.