Contributed to the astral-sh/ruff repository by developing custom file extension support in the Ruff linter, enabling formatting and linting for non-standard file types such as .thing. This work involved updating the Language Server Protocol (LSP) integration to recognize and process custom extensions, streamlining workflows for developers handling diverse file types. The implementation focused on Rust, leveraging code formatting and linting pipelines to expand language coverage and reduce manual configuration. By co-authoring this feature, the developer improved code quality practices and enhanced the overall developer experience, although no major bugs were addressed during this period. The work demonstrated proficiency in Rust and LSP.