Librarian uses a two-level structure where directories inside its
data dir are indexed as content types or categories, and the content inside each of these directories is indexed as entries in those categories.
Consider the following structure:
data/ posts/ - 01-my-post-title.md - 02-another-post.md pages/ - about.md - sponsors.md
This data structure yields the following URLs:
/pages /pages/about /pages/sponsors /posts /posts/01-my-post-title /posts/02-another-post