Worked on the NVIDIA/Fuser repository to enhance developer onboarding and debugging efficiency by updating API documentation and improving error diagnostics. Delivered a runnable example demonstrating fusion definition and execution with symbolic-dimension tensors, clarifying API usage for new contributors. Improved size-mismatch error messages by introducing a helper lambda in C++, making diagnostics more user-friendly and reducing troubleshooting time. Focused on documentation-driven improvements using Markdown and Python, which increased the discoverability of key features and streamlined the first steps for developers. The work emphasized clear communication, robust error handling, and practical code refactoring to support a smoother development experience for the community.