Worked on the pola-rs/pyo3 repository to expand runtime compatibility and streamline the developer experience. Addressed PyPy compatibility by correcting linking for PyPyModule_ExecDef and PyPyModule_FromDefAndSpec2, making minimal targeted changes to function definitions to resolve runtime errors. Enhanced GraalPy 25.0 support by updating CI workflows, documentation, and minimum version requirements, and documented these changes for users. Utilized Rust, YAML, and Markdown to implement build configuration, CI/CD improvements, and FFI updates. These efforts reduced PyPy-related errors, broadened GraalPy support, and improved onboarding for new contributors through clearer documentation and more robust continuous integration pipelines.