🤗 Kernels: Major Updates

This post introduces a new 'kernel' repository type on the Hugging Face Hub for packaging and distributing custom compute kernels, enhancing discoverability and providing metadata on supported hardware and backends. It details significant security enhancements including 'trusted kernel publishers' (requiring explicit opt-in for non-trusted sources) and kernel signing using Sigstore's cosign for integrity verification. The CLIs for `kernels` and `kernel-builder` have been revamped for better separation of concerns and agent optimization. Support for Torch Stable ABI and Apache TVM FFI has been added, enabling broader framework interoperability. The post also outlines how these updates lay the foundation for agentic kernel development by providing structured scaffolding, reproducible builds, and integrated benchmarking capabilities via HF Jobs.