During September 2025, Elo contributed to the vectordotdev/vector repository by developing an optional NaN value filtering feature for the prometheus_remote_write source. This addition allows users to discard metrics containing NaN values, thereby improving data integrity for downstream analytics and dashboards while maintaining backward compatibility by default. Elo implemented the feature in Rust, leveraging configuration management and data filtering techniques, and ensured robust test coverage to validate behavior and prevent regressions. The work was well-scoped, focusing on maintainable instrumentation and clear feature flag usage, and addressed the challenge of reducing noise from invalid metrics without introducing breaking changes.