Worked on the decentraland/auth repository over a two-month period, focusing on both CI/CD infrastructure and authentication flow improvements. Introduced an internal CI/CD workflow by migrating GitHub Actions to a self-hosted oddish-action, which reduced external dependencies and centralized version management for more secure and reproducible releases. In a subsequent phase, enhanced the OAuth authentication flow by implementing targeted error handling using TypeScript, including error type guards and improved logging strategies. These changes improved user experience and system reliability while maintaining a strong focus on security and maintainability. Primary technologies included TypeScript, YAML, GitHub Actions, and front end development practices.