Sachin Rajakaruna focused on improving contributor onboarding and documentation across the pollinations and erxes open-source repositories. He enhanced the CONTRIBUTING.md in pollinations by rewording guidelines and clarifying instructions on coding style, commit messages, and testing, making it more accessible for new contributors. For erxes, he authored a dedicated HACKTOBERFEST.md guide that outlined project philosophy, onboarding steps, and contribution standards. His work emphasized Markdown-based technical writing and open source collaboration, aligning practices across both projects. While he did not address bug fixes, Sachin’s contributions provided depth in documentation and standardized processes to support scalable, high-quality community-driven development.