Jiali Qiu refactored the cubos repository by introducing a VoxelModel class to centralize QB file parsing, addressing code duplication previously spread across multiple parsing paths and convert.cpp. Using C++ and object-oriented programming principles, Jiali migrated parsing logic from parseQB and QBMatrix into a unified VoxelModel.loadFrom method. This architectural change improved the maintainability and extensibility of voxel-based QB processing, making future enhancements more straightforward. The refactor also included targeted updates to convert.cpp and comprehensive documentation in the CHANGELOG. Jiali’s work demonstrated depth in file parsing and refactoring, resulting in a cleaner, more testable codebase for the project.