The recent porting of Shadertoys to Rust GPU is a significant development for graphics programming. It enables shader writing in Rust, leveraging its tooling and ecosystem, which could simplify the shader development process that has traditionally been challenging, especially in environments like Unity. Users express excitement about the potential for better performance and usability, particularly for M-series Macs. However, discussions highlight that while alternatives to traditional shader languages like HLSL and GLSL exist, they have their own limitations and are not direct replacements. The debate around CUDA and OpenCL versus shader languages suggests a nuanced understanding is required when discussing GPU programming paradigms.