Developed MACSec-enabled Arista device type support for the netbox-community/devicetype-library, expanding automated provisioning and policy enforcement capabilities for four new Arista models. Leveraged YAML for structured data modeling and network device configuration, ensuring seamless integration of MACSec security features into the device type library. Addressed integration reliability by implementing targeted fixes within the same commit, supporting robust deployment of these new device types. Collaborated with other contributors to deliver the feature efficiently, focusing on enhancing network security posture and reducing manual configuration overhead. The work increased the platform’s reach and provided a foundation for more secure, automated network management workflows.