In April 2025, Hong An focused on documentation maintenance for the firedancer-io/firedancer repository, specifically refining the testing documentation to improve clarity for new contributors. By editing Markdown files, Hong An removed a redundant cross-reference in testing.md, ensuring the documentation aligned with the current testing workflow and reducing potential onboarding confusion. The work involved careful review of existing documentation structure and adherence to traceable, doc-only commits, demonstrating attention to maintainability and process transparency. While the contribution did not involve functional code changes or bug fixes, it reflected a methodical approach to documentation using Markdown and a strong understanding of developer onboarding needs.