Oswaldo Gomez enhanced the authentication system for the timholy/boltz repository by implementing dual-mode support for both basic and API key authentication, ensuring mutual exclusivity and robust credential validation. He refactored backend logic to remove deprecated keys, consolidating authentication handling to reduce duplication and minimize misconfiguration risks. Using Python and focusing on backend development and security, Oswaldo also improved documentation by relocating detailed authentication instructions from the README to a dedicated Markdown file, increasing clarity and discoverability. His work addressed both technical depth and maintainability, resulting in a more secure, organized, and user-friendly authentication process for the project.