Worked on the pantsbuild/pants repository to improve the stability and reliability of the development environment by updating the DevContainer configuration. Focused on resolving setup issues caused by Python version mismatches, the work involved aligning the containerized environment to use Python 3.14 instead of 3.11. This change reduced onboarding friction for new contributors and enhanced consistency across local and CI workflows. Demonstrated skills in containerization, DevOps practices, and Python version management, with careful attention to configuration hygiene. The update addressed environment brittleness, resulting in a more predictable setup process and a smoother experience for both new and existing contributors.