Kiuber Zhang contributed to the gofiber/fiber repository by clarifying the documentation for the OnPostStartupMessage hook signature. Focusing on Go programming and technical writing, Kiuber updated the docs/whats_new.md file to correct a typo and ensure the documentation accurately reflected the actual code implementation. This targeted change aimed to reduce onboarding friction and minimize the risk of misimplementation for developers integrating with the hook. While no bugs were fixed during this period, the work demonstrated attention to detail and a commitment to improving developer experience. The contribution was concise, low-risk, and reinforced the importance of clear, accurate documentation in Go projects.