During August 2025, Nonni enhanced authentication security in the stripe/LibreChat repository by implementing nonce generation for federated OpenID providers. Using JavaScript and backend development skills, Nonni refined the OpenID setup to support nonce flows, addressing validation issues that previously affected login stability. The technical approach involved generating and validating nonces within authorization requests, reducing the risk of replay attacks and improving the reliability of federated authentication. Although the work focused on a single feature, it demonstrated depth by laying a foundation for broader federation support and easier integration with additional identity providers, contributing to a more secure authentication experience.