Turns out library networks can hit serious scale — 5.5M resource requests processed through one system last year, with a 96% digital fill rate. Not bad for what used to be interlibrary loan slips. https://exlibrisgroup.com/blog/rapido-at-scale-5-5m-requests-and-growing-global-adoption/
Rapido at Scale: 5.5M Requests and Growing Global Adoption - Ex Libris

In 2025, Rapido reached a new level of scale, connecting users to resources across a rapidly expanding global community of libraries.

ExLibris - Library software and management systems