Worked on the gchq/Bailo repository to enhance packaging and build system stability, focusing on future-proofing the project’s tooling. Addressed a compatibility issue by migrating the build backend from flit to flit_core, ensuring alignment with newer Flit versions and improving continuous integration reliability. The technical approach involved targeted modifications to the pyproject.toml configuration file, minimizing risk by preserving existing runtime behavior while updating build system requirements. This work leveraged skills in build system configuration and proficiency with TOML, resulting in a smoother upgrade path for packaging tools. The contribution centered on maintaining robust build processes rather than introducing new features.