Worked on stabilizing the facebook/buck2-prelude repository by addressing build instability caused by a recent dependency upgrade. Focused on build system configuration using BUCK, the developer reverted the commons-compress library from version 1.26.0 back to 1.24.0 to restore reliability and maintain downstream compatibility. This change mitigated risk and ensured reproducible builds, directly improving the stability of continuous integration pipelines. The technical approach involved careful dependency management and thorough documentation of the rationale behind the revert, supporting future audits and maintainability. The work prioritized a stable release baseline, laying the groundwork for future feature development and iterative improvements.