Developed and published the ESP32 Secure DNS Implementation Guide for the espressif/developer-portal repository, focusing on practical integration of DNS over TLS and DNS over HTTPS using the ESP DNS component. The guide provided step-by-step instructions and code examples in C, enabling developers to enhance IoT security with minimal changes to existing projects. Emphasized security best practices and streamlined the adoption of secure DNS protocols for embedded systems. Demonstrated technical writing skills by consolidating DoT and DoH guidance into a single resource, supporting traceability through linked commits and improving the developer experience for those working with IoT security and embedded C programming.