During October 2025, Git Rover developed the Babybear GPU Prover feature for the scroll-tech/ceno repository, focusing on accelerating zero-knowledge proof generation using GPU programming and CUDA. By optimizing proof creation, batch commits, and main/tower proofs, Git Rover improved throughput and scalability for GPU-enabled workloads. The work involved updating dependencies and aligning internal type mappings in C++ and Rust to ensure compatibility and maintainability. Integration with existing proof pipelines was validated, and documentation and tests were updated to reflect the new GPU prover. This engineering effort delivered a cleaner, more efficient codebase, addressing performance bottlenecks in proof generation workflows.