Arch Hurd is a derivative work of Arch Linux porting it to the GNU Hurd system with packages optimised for the i686 architecture.
From the Arch Linux website: "Arch Linux is an independently developed, i686/x86-64 general purpose GNU/Linux distribution versatile enough to suit any role. Development focuses on simplicity, minimalism, and code elegance. Arch is installed as a minimal base system, configured by the user upon which their own ideal environment is assembled by installing only what is required or desired for their unique purposes. GUI configuration utilities are not officially provided, and most system configuration is performed from the shell by editing simple text files. Arch strives to stay bleeding edge, and typically offers the latest stable versions of most software."
We are attempting to bring the spirit of Arch Linux to the Hurd, and if you'd like to help us achieve that, we'd love to hear from you.