Explore the inner workings of Prometheus in this 36-minute deep dive conference talk featuring Prometheus maintainers Richard "RichiH" Hartmann from SpaceNet and Ben "SuperQ" Kochie from GitLab. Gain insights into the core functionalities, operational aspects, and future developments of this popular monitoring system. Discover topics such as storage backends, remote read/write APIs, security measures, release cycles, and potential improvements. Learn about data islands, asset databases, labels, and the Open Metric standard. Delve into discussions on CPU usage, compression techniques, PromQL, and integration with other tools like Cortex and Thanos. Understand the challenges faced by Prometheus and how the community is working to address them, making this talk invaluable for both beginners and experienced users of the platform.