Developed a dedicated PKCE configuration guide within the nginx/documentation repository, focusing on enhancing Keycloak OIDC integration workflows. The work involved creating a new documentation tab in Markdown that walks users through disabling client authentication, selecting appropriate code challenge methods, and clarifying when client secrets are required in PKCE setups. By emphasizing security best practices and reducing common misconfigurations, the guide streamlines onboarding for developers implementing OIDC with Keycloak. Leveraging expertise in documentation and authentication protocols, the contribution improved both the clarity and maintainability of the documentation, resulting in fewer support queries and a more secure integration process for users.