Worked on the ansible/tox-ansible repository to enhance the Ansible-Core test matrix, delivering a feature that expanded compatibility testing to include ansible-core 2.21 across Python versions 3.12 through 3.14. Addressed configuration issues by removing a duplicate 2.20 entry, which improved the reliability of continuous integration and reduced test flakiness. Updated environment lists to reflect the latest stable releases, ensuring more accurate and noise-free test results. Collaborated closely with other contributors to strengthen governance around test matrix changes. The work demonstrated proficiency in DevOps practices, Python development, and automated testing, focusing on maintainability and traceability within CI workflows.