Worked on reliability and rendering improvements in the jj-vcs/jj and lvgl/lvgl repositories, focusing on bug fixes in embedded systems and graphics programming using C and Markdown. Addressed Windows-specific setup issues in jj-vcs/jj by updating documentation to prevent line-ending and repository configuration errors, enhancing cross-platform consistency. In lvgl/lvgl, resolved EVE graphics driver bugs by aligning BITMAP_SIZE with actual image dimensions and refining scissor edge handling, which eliminated rendering artifacts and improved visual output. Prioritized targeted, low-risk changes that strengthened code stability and developer experience, demonstrating attention to detail in both documentation and low-level driver development.