Over a two-month period, contributed to GPU and graphics programming projects using Rust, focusing on foundational rendering and buffer management improvements. In the emilk/egui repository, implemented a stencil buffer attachment for the egui-wgpu rendering pipeline, enabling more complex visual effects and optimized depth handling for richer UI rendering. Subsequently, in the gfx-rs/wgpu repository, enhanced the StagingBelt by introducing support for user-defined buffer usages, increasing flexibility in buffer management and reducing integration friction for client code. Both features were delivered with attention to API safety and test coverage, demonstrating depth in rendering techniques and robust Rust engineering practices.