Edgaras Giedraitis enhanced alerting capabilities in the grafana/mimir repository by expanding Golang Alerts to use job label filtering instead of the previous namespace-based approach. This change, implemented across multiple configuration files using libsonnet and yaml, broadened alert coverage and reduced the risk of missed alerts in diverse deployments. Edgaras applied configuration management best practices to ensure consistent behavior and easier maintenance of alert rules. By leveraging skills in observability and label-based filtering, Edgaras delivered a feature that improved monitoring reliability and maintainability, demonstrating depth in multi-file configuration changes and a thoughtful approach to scalable alerting infrastructure.