Worked on the atcollab/at repository to enhance the reliability of continuous integration and testing workflows by addressing visibility issues with test assets. Focused on version control, the developer modified Git configuration to ensure that test files and directories were no longer excluded by .gitignore, allowing them to be tracked and committed alongside source code. This change improved repository hygiene and streamlined onboarding for new contributors by making all test assets consistently available in Git history. The work primarily involved Git and version control best practices, targeting a bug that previously caused discrepancies between local and CI environments due to hidden test files.