The article delves into Keycloak Authorization Services, which allow for more fine-grained access control compared to simple Role-Based Access Control (RBAC). It explains how to define resources, scopes, policies, and permissions in Keycloak to manage access rules more efficiently. By using these features, developers can avoid creating a convoluted system of roles and permissions in their codebase and instead centralize access management through Keycloak. The next step involves integrating this setup with a NestJS app in the upcoming article.