During August 2025, contributed to the stripe/LibreChat repository by implementing security enhancements for federated OpenID authentication. Focused on backend development using JavaScript, the work introduced nonce generation to secure authorization requests, addressing vulnerabilities such as replay attacks. The OpenID configuration was refined to support nonce handling, improving compatibility with various federated identity providers and stabilizing the login flow. By resolving nonce validation issues, the authentication process became more reliable for end users. These changes established a foundation for future federation support, enabling easier integration with additional identity providers and enhancing the overall security posture of the authentication system.