Worked on the containers/composefs-rs repository to enhance the reliability and maintainability of the testing pipeline by introducing environment-aware test management. Developed and integrated the test-with crate using Rust, enabling the test suite to automatically detect the presence of the mkcomposefs executable and skip tests when the required dependency is unavailable. This approach reduced flaky test results and improved both local and CI run efficiency by gating environment-dependent tests. The work focused on strengthening Rust-based testing practices, leveraging crate-based dependency management, and optimizing continuous integration workflows, resulting in a more deterministic and streamlined testing process without addressing critical bugs.