VuFind was chosen as the discovery system to integrate the catalogs of three different library management systems used by the academic libraries in South West Wales. It required overcoming challenges like hosting multiple instances, merging data from different sources and standards, designing a dual language interface, and developing drivers to connect to each library system. Lessons learned include that open source solutions can work well but require significant staff time and resources, and collaboration is key to success. Future plans include sustaining and mainstreaming the system, exploring additional shared services, and investigating other open source library systems like Evergreen.