During February 2025, this developer focused on enhancing the HeroFan71/Xquery_Pr-ctica repository by delivering comprehensive documentation for XQuery arithmetic expressions. Their work involved creating clear technical explanations and practical examples, including a sum calculation and an execution screenshot, all structured in Markdown for accessibility. By organizing new material under a dedicated docs section, they improved knowledge sharing and streamlined onboarding for future contributors. The approach emphasized maintainability and clarity, providing a reusable reference for engineers working with XQuery. No major bugs were addressed during this period, as ongoing maintenance and backlog management continued as part of the regular development cycle.