<ul data-eligibleForWebStory="true">Decouple authorization logic from business code using Open Policy Agent (OPA) and Rego.OPA is a policy engine and Rego is its declarative policy language for fine-grained access control.Benefits include centralized authorization, better security, maintainability, and auditability in modern applications.Use cases range from API authorization to CI/CD pipeline governance with OPA.Implementing OPA and Rego can enhance agility and governance in cloud-native systems.