During December 2024, this developer enhanced the coder/coder repository by implementing a Prometheus metric to improve observability of workspace build times. Focusing on backend development and metrics, they introduced workspace_build_timing_seconds, a new metric designed in Go to measure build durations while reducing cardinality by omitting workspace name and owner labels. The metric was integrated directly into the build runner, enabling real-time telemetry within the workspace build path. This addition allows for more reliable performance analysis and capacity planning, supporting faster diagnosis of latency issues and data-driven optimization of build pipelines without increasing monitoring overhead or complexity.