The article provides a comprehensive overview of distributed tracing, a technique used to understand interactions within distributed systems by visualizing data flow and identifying errors across components. It explains how distributed tracing functions, involving elements such as spans, tags, and traces, to track requests throughout a system using multiple tracers and centralized analysis. The text guides readers on setting up distributed tracing in a Kubernetes cluster using Signoz, an open-source tool that leverages OpenTelemetry for metrics, tracing, and logging, with a practical demonstration using a sample Node.js application. The author highlights the benefits of distributed tracing, such as quicker error diagnosis, performance improvements, and resource optimization, while also suggesting Earthly as a tool for enhancing build automation in complex projects.