Fiws focused on enhancing documentation for the Biome Tool in the martinvonz/jj repository, addressing cross-platform usability challenges. They replaced outdated Windows-specific command instructions with an OS-agnostic binary approach, ensuring that users across different operating systems could follow consistent guidance. Using Markdown and technical writing skills, Fiws added a real-world usage example to the documentation, which helps reduce onboarding time and prevents misconfigured commands. Their work corrected an invalid biome command example that previously risked producing incorrect output, aligning the project with modern OS-agnostic tooling standards. The contribution was delivered as a single, targeted documentation update.