The document discusses the University of Colorado at Boulder library's decision to continue using a purchased integrated library system (ILS) rather than adopting an open source alternative. It provides context about the library's current ILS (Millennium), partnerships, campus environment, finances, and staffing challenges. While acknowledging trends toward open source software, the library's strategy is to maintain its vendor partnerships and services, monitor open source developments, and advocate for increased resources, as open source ILS platforms are still maturing and staffing levels already present difficulties compared to peers.