Worked on the netbox-community/devicetype-library repository to enhance documentation and asset management for Cisco device types, focusing on the ISR 1121-4P model. Improved the YAML-based device configuration by expanding Power over Ethernet settings and clarifying front and rear port descriptions. Added new image assets and updated filenames to streamline asset discoverability and maintainability. Broadened the device catalog by contributing additional documentation entries for related models, ensuring comprehensive coverage. Collaborated closely with co-authors to verify content accuracy and completeness. The work emphasized device configuration, networking, and documentation skills, resulting in more usable and maintainable resources for the device type library.