During a two-month period, Zongying Li contributed to font management and rendering workflows across lizongying/homebrew-cask and typst/typst. In homebrew-cask, Zongying expanded typography options by integrating the NewCMSansMath font, updating Ruby scripts to support new font declarations. For typst/typst, Zongying delivered a feature enabling font family selection based on character set coverage, refactoring Rust-based font handling logic to support charset-aware selection and adding automated tests to ensure reliability. The work demonstrated depth in text layout, Unicode handling, and regular expressions, focusing on feature delivery and code maintainability rather than bug fixes, with careful attention to test coverage.