Rogier contributed a focused documentation update to the home-assistant/developers.home-assistant repository, clarifying how to specify a library name with a Git repository URL in integration manifests. Using Markdown, Rogier improved the documentation to guide developers in correctly referencing custom Python packages from Git, reducing misconfiguration and setup errors during installation. The update included revised testing guidance to ensure accurate usage of Git URLs for custom requirements, directly supporting developer onboarding and maintainability. While the work centered on documentation rather than code, it demonstrated attention to detail and alignment with Home Assistant documentation standards, enhancing the overall developer experience for integration authors.