Build and Deploy a GitHub-Style Permission System in AuthZed Cloud

Access permissions on GitHub operate through a complex model involving tiered roles and account structures, allowing organizational owners extensive control over repositories without individual configurations. The system is based on layers where permissions flow from organizational ownership and team hierarchies to individual resources. SpiceDB, an open-source database using Relationship-Based Access Control (ReBAC), and AuthZed Cloud facilitate modeling and scaling such intricate permission systems. GitHub's permission levels—Reader, Triager, Writer, Maintainer, and Admin—are translated into a SpiceDB schema using relations and permissions, enabling dynamic updates as team memberships change. The schema's flexibility allows organization-level roles to automatically inherit repository permissions, reflecting GitHub's real-world behavior. The document further outlines how to model and implement this system on AuthZed Cloud, which allows for seamless permission management and checks through various client languages, emphasizing the importance of making strategic decisions regarding organizational roles and permission granularity.