Rocky Linux Founder Uses OpenAI Codex to Build Ginux Kernel

Nov 4, 2026
Gregory Kurtzer used a single Codex task to create Ginux, a Rust based research kernel that can run unmodified Linux programs.

Rocky Linux founder Gregory Kurtzer used a single long running Codex task to build Ginux, a new kernel written mostly in Rust, according to TechSpot. The task used GPT-5.6 Sol from OpenAI and ran for 11 days, producing about 139,000 lines of code and tests across more than 1,000 commits.

Ginux is not a Linux fork. Its memory management, scheduling, filesystems, and networking were written from scratch, while compatibility with the Linux ABI lets unmodified Linux programs run on it. The kernel uses isolated domains for processes, memory, and filesystems, and can use OCI container images to boot Rocky Linux 10 to the systemd multi user target.

The kernel fully implements 82 of the 375 system calls in the Linux 6.12 x86-64 interface, with 245 partly implemented and 48 intentionally blocked. Ginux remains a research project, has not received an independent security audit, and currently runs only in a QEMU virtual machine without support for physical hardware, GPUs, or NVMe drives.

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