As of version 0.12.0, the Guix System Distribution can be installed on an i686 or x86_64 machine. It uses the Linux-Libre kernel and the GNU Shepherd init system. Alternately, its package manager, GNU Guix, can be installed as an additional package manager on top of an installed Linux-based system.
USB installer of the Guix System Distribution.
GNU Guix 0.12.0 Binary
Self-contained tarball providing binaries for Guix and for all its dependencies.
Source code for the Guix System Distribution USB installation images as well as GNU Guix can be found on the GNU ftp server for alpha releases: http://alpha.gnu.org/gnu/guix/ (via HTTP) and ftp://alpha.gnu.org/gnu/guix/ (via FTP).