Kumar Harsh's tutorial offers a comprehensive guide on integrating single sign-on (SSO) using Descope with Open WebUI, an open-source, self-hosted interface for LLMs that often handles sensitive data. The tutorial emphasizes the importance of secure authentication to prevent unauthorized access and outlines the process of setting up Descope for passwordless login, social logins, and enterprise SSO integration with Open WebUI. The guide details the configuration of an SSO tenant using Okta and the implementation of federated authentication through OpenID Connect (OIDC), allowing users to log in once and access multiple applications without re-entering credentials. By utilizing OAuth claims for role management, the tutorial demonstrates how to assign user roles directly through Descope, streamlining access control without manual approval processes. Additionally, it touches on managing user permissions within Open WebUI and the potential use of Descope for group management, enhancing security and user experience by centralizing authentication and reducing the risks associated with password vulnerabilities.