In June 2025, Maciej Wajdzik focused on modernizing CI/CD infrastructure for the neptune-fetcher and neptune-client-scale repositories. He migrated GitHub Actions workflows from the default ubuntu-latest runners to a custom tools-gha-runners environment, using YAML to consolidate and standardize runner configurations. This approach improved the reliability and predictability of pre-commit, build, and end-to-end testing pipelines, reducing variability and maintenance overhead. By emphasizing DevOps best practices and leveraging CI/CD automation, Maciej laid the groundwork for faster, more stable releases. No critical bugs were addressed, as the primary engineering effort centered on infrastructure consistency and process optimization across both projects.