Worked on optimizing the continuous integration workflow for the nodejs/node repository by updating the GitHub Actions runner configuration. The main contribution involved switching from the default ubuntu-latest runner to ubuntu-slim, a change implemented using YAML to define the workflow. This adjustment aimed to reduce resource consumption and potentially accelerate build times, aligning with DevOps best practices for efficiency. The work was validated through collaboration with multiple engineers, ensuring the update met project standards. No bug fixes were recorded during this period, with the focus remaining on feature delivery and workflow improvement using skills in continuous integration and GitHub Actions.