Worked on the kivitendo/kivitendo-erp repository to streamline the codebase by removing outdated instructions and unnecessary guidance, focusing on code refactoring and documentation cleanup using Python. This targeted simplification reduced the risk of misconfiguration and improved overall maintainability, making it easier for new contributors to onboard and for future features to be developed more efficiently. The approach emphasized small, low-risk changes with clear Git traceability, setting a standard for incremental improvements. By clarifying documentation and eliminating obsolete content, the work enabled a leaner development process and established a foundation for faster, safer updates in subsequent development cycles.