Based on the history and usage of horreum here in this first episode of the Thesaurus Linguae Latinae podcast, a project featuring a 10+ million slip zettelkasten at its core, I can't help but think that not only is the word ever so apropos for an introduction, but it does quite make an excellent word for translating the idea of card index in English or Zettelkasten from German into Latin.

My horreum is a storehouse for my thoughts and ideas which nourishes my desire to discover and build upon my knowledge.

This seems to be just the sort of thing that Jeremy Cherfas might appreciate on multiple levels.

https://mcdn.podbean.com/mf/download/nxm28u/Horreum.mp3