Anton Polshkov focused on improving CI reliability and security-testing workflows in the 0xPolygonHermez/cdk-erigon repository. He addressed a persistent issue with security tests by modifying the Docker container configuration to use the --network host option, enabling proper access to the Kurtosis-provided RPC URL during test execution. This adjustment reduced test flakiness and allowed end-to-end security validation within the intended network environment. Anton applied his expertise in CI/CD, Docker, and YAML to orchestrate robust test pipelines. While the work centered on a single bug fix, it demonstrated a thoughtful approach to infrastructure reliability and secure, reproducible testing in complex environments.