Build Production-Ready CUDA Kernels with kernel-builder

AI Impact Summary

OpenAI is releasing a guide on building and scaling production-ready CUDA kernels, focusing on the kernel-builder library and its integration with PyTorch. This release introduces a reproducible build environment using flake.nix and emphasizes the registration of the custom CUDA kernel as a native PyTorch operator, enabling seamless integration with `torch.compile` and hardware-specific implementations. The guide provides a detailed breakdown of the kernel's architecture, including the `build.toml` manifest, CUDA kernel code, and Python wrapper for easy usage within the PyTorch ecosystem.