Worked on the MilesCranmer/julia repository to address a persistent issue with temporary file cleanup during the Julia build process. Focused on backend development and build systems using Julia, the solution involved disabling automatic cleanup when creating temporary files and instead relying on the cleanup of the temporary directory. This approach prevented infinite error loops and reduced flaky builds, leading to more stable and efficient CI cycles. The work improved system programming reliability by ensuring that temporary artifacts were properly removed, which in turn minimized wasted compute resources and enhanced overall developer productivity while maintaining clear traceability through well-documented commits.