During December 2025, Groth contributed to the Esri/DirectXShaderCompiler repository by implementing shader derivative support within both coalescing and broadcast nodes. This work involved extending the shader compiler’s handling of derivatives to ensure compliance with specification requirements, using C++ and HLSL to modify core compiler logic. Groth also developed comprehensive tests to validate correct derivative behavior across these nodes, directly improving shader correctness and rendering accuracy. By focusing on graphics and shader programming, Groth’s changes enhanced the reliability of the downstream graphics pipeline and enabled more accurate optimizations, reflecting a deep understanding of both compiler internals and graphics standards.