Frans Luteijn enhanced the user documentation for the open-zaak/open-zaak repository by refining textual content to improve clarity, consistency, and terminology, while also incorporating practical examples to aid understanding. His work focused on technical writing and documentation standards, utilizing reStructuredText and applying Dutch language considerations to ensure accessibility for the target audience. By standardizing terminology and clarifying instructions, Frans aimed to reduce onboarding time for new users and minimize support queries. The depth of his contribution lay in careful attention to language and structure, resulting in documentation that better supports both users and developers in adopting new features efficiently.