Worked on the shardeum/shardeum repository to enhance developer access controls by implementing secure Developer Access Keys for testing workflows. Focused on configuration management using TypeScript, the contribution established a high-security, auditable process for enabling and managing developer access, specifically assigning elevated security levels to new development keys. This approach allowed for faster and more controlled testing cycles while maintaining a strong security posture. The work involved close collaboration with both security and development teams to ensure that access enhancements met project requirements. No major bugs were addressed during this period, with efforts concentrated on feature delivery and secure configuration updates.