Fedor Goncharov refactored the GPU selection utility in the deepinv/deepinv repository to enhance reliability and adaptability across diverse environments. He redesigned the get_freer_gpu function in Python to support both PyTorch API and nvidia-smi methods, allowing users to select their preferred approach and optionally suppress warnings. Fedor updated the test suite to ensure coverage of the new arguments and behaviors, and revised documentation to clarify usage and potential caveats. His work focused on GPU management, system integration, and testing, resulting in more predictable performance and improved CI stability for GPU-enabled workflows, addressing environment-specific fragility in deployment scenarios.