During May 2025, Sabraoui M. focused on enhancing security governance and developer experience for the shardeum-validator and shardeum-collector repositories. He developed and standardized SECURITY.md documentation, detailing vulnerability reporting processes, response times, and responsible disclosure guidelines to ensure consistent policy adoption across both projects. Using Markdown and Shell scripting, he also updated the installation agreement prompt in shardeum-validator to clarify node participation, potential earnings, and performance requirements. This work improved risk reporting, streamlined onboarding for contributors, and strengthened trust with partners. The depth of his contributions lay in aligning security practices and documentation across core repositories, reducing ambiguity and security risk.