Rohan Rathi contributed to the hacksider/Deep-Live-Cam repository by enhancing the face swapping feature to improve GPU compatibility and deployment reliability. He addressed NaN instability on certain GPUs by switching the default model to FP32 precision, ensuring more stable machine learning inference across diverse hardware. Rohan also revamped the Python run script to better manage PATH variables and dependencies, streamlining the setup process for users. His work demonstrated practical GPU programming and Python scripting skills, focusing on code maintainability and usability. The depth of his contribution lay in resolving hardware-specific issues and simplifying deployment, resulting in a more robust application foundation.