Worked on enhancing the resilience and developer experience of the ocaml/dune package manager by improving error handling during package extraction. Focused on build systems and error handling, the developer implemented more informative error reporting by capturing exit codes and standard error output when extraction failures occur, making it easier to diagnose issues with corrupted archives or problematic extraction tools. End-to-end tests were added to cover these failure scenarios, ensuring robust regression protection and maintainability. Using ML and testing frameworks, this work aligned with project goals to reduce downtime and streamline issue resolution, contributing to the overall operability of the system.