Developed and delivered Pyrefly integration for the mason-org/mason-registry repository, introducing a Rust-based Python type checker configured as both a linter and Language Server Protocol (LSP) with Neovim support. The work focused on enabling real-time type checking and linting for Python projects managed by Mason, streamlining the installation and usage process for developers. Leveraging skills in LSP configuration, package management, and YAML, the integration established an end-to-end workflow that improves code quality and developer productivity. All changes were tracked with linked issues and commits, ensuring traceability and maintainability within the Mason registry ecosystem for Python development workflows.