Explore the implementation of a multi-tenant, relationship-based authorization model using OpenFGA in this informative conference talk. Learn how the open source supply chain security platform, Minder, transitioned from a custom database-backed authorization system to OpenFGA, an open source authorization solution. Discover the benefits of using OpenFGA for implementing hierarchical permissions and project relationships. Gain insights into utilizing OpenFGA's modeling language for writing and testing permissions models, implementing middleware for authorization checks, and integrating with identity providers. By the end of this presentation, acquire the knowledge needed to evaluate whether OpenFGA is suitable for your authorization needs in multi-tenant services.