A developer recounts their journey as a newcomer to .NET 9.0, Blazor, and the observability platform Coralogix, exploring how these tools enhance application monitoring and debugging. Emphasizing the importance of observability in Agile environments, the author details the integration of OpenTelemetry (OTel) to collect telemetry data—traces, metrics, and logs—from a Blazor application. This data is then visualized in Coralogix to facilitate real-time root cause analysis, making the debugging process more efficient. By setting up observability features, the author transforms a basic weather service application into a robust monitoring system, showcasing how tracing, metrics, and logging can significantly improve the understanding of system performance and issues. The narrative underscores how observability tools not only aid in identifying system bottlenecks and failures but also enhance the ability to respond proactively to potential issues, ultimately improving the development and maintenance of modern applications.