Absolutely simple Flex

New Relic provides a comprehensive observability platform with pre-built agents and resources, but when critical metrics are missing, the Flex integration allows users to collect custom monitoring data effortlessly. Flex is described as an application-agnostic tool that works alongside the infrastructure agent, requiring users to configure YAML files to integrate custom data into New Relic. The blog post offers guidance on setting up Flex, emphasizing the significance of correct YAML configuration, and explains how to use New Relic Query Language (NRQL) to visualize and manage the collected data. The author underscores the ease of transforming data into charts for dashboards and hints at future posts expanding on Flex's capabilities. The blog emphasizes the platform's scalability and customization potential, while also providing user engagement through community forums and further resources.