Sami Liedes enhanced Wayland rendering in the FreeCAD/FreeCAD repository by improving color fidelity and ensuring compatibility with NVIDIA drivers. He implemented logic in C++ and Qt to request a 24-bit color depth when available, adjusting surface formats for color, alpha, depth, and stencil buffers under Wayland. These changes were applied both at application startup and within the QuarterWidget, ensuring consistent rendering across sessions and user interface components. By requesting an OpenGL compatibility profile, including legacy functions, Sami addressed rendering issues specific to Linux users on Wayland. The work demonstrated focused depth in GUI development and cross-platform graphics integration.