GNU Guix consists of Scheme code that implements the deployment model of the Nix package management tool. In fact, it currently talks to a build daemon whose code comes from Nix (see the manual for details.) Nix was initially written by Eelco Dolstra; other people have been contributing to it. See `nix/AUTHORS' for details. The list of GNU Guix contributors is now generated from the output of 'git log' and written to this file, as can be seen in release tarballs.