The National Library of the Netherlands is dedicated to providing seamless access to both physical and digital literature, storing 3.5 petabytes of data that grows annually, and making it available online around the clock. To support this mission, they implemented the Grafana stack for their observability strategy, prioritizing user experience and real-time data-driven decision-making. The library chose Grafana over Splunk due to its ease of use, cost-effectiveness, and native Prometheus support, leading to an annual operational cost reduction of €80,000. They deployed two Grafana servers with Grafana Mimir for metrics and Grafana Loki for logs, enhancing developer empowerment and reducing mean time to recovery (MTTR) by enabling quick issue identification through customized dashboards. Looking forward, the library plans to expand its Grafana stack capabilities with components like Grafana Alerting, Tempo, and Faro for enhanced performance monitoring and user experience.