Dive into a comprehensive conference talk on Prometheus, the second oldest project in the Cloud Native Computing Foundation (CNCF). Learn about the fundamentals of this powerful monitoring and alerting toolkit, starting with an introduction to its architecture and key selling points. Explore the data model, querying capabilities, and alerting features that make Prometheus essential for modern infrastructure monitoring. Discover how Prometheus achieves efficiency and bridges gaps in observability. Gain insights into recent updates, including feature flags in v2.25, enhancements to PromQL, the new agent mode in v2.32, and the remote write receiver. Get a glimpse of upcoming features and developments in the Prometheus ecosystem. Whether you're new to Prometheus or an experienced user, this talk offers valuable knowledge to leverage its capabilities in your cloud-native environments.