Maarten Derickx enhanced the pi-base/data repository by developing comprehensive documentation for the divisor topology’s fixed-point property (P89). He authored a dedicated Markdown property file that formally defined the property and provided a mathematical explanation for why the multiplication-by-n function lacks fixed points in this context. Focusing on technical documentation, Maarten’s work clarified a complex mathematical concept, reducing ambiguity for both users and contributors. By linking the documentation to internal issue trackers and references, he improved traceability and future maintainability. This contribution deepened the repository’s technical clarity, leveraging his expertise in mathematical exposition and structured documentation using Markdown.