All Nix expressions in this repository are free software: you can
redistribute them and/or modify them under the terms of the GNU General
Public License as published by the Free Software Foundation, either
version 3 of the License, or (at your option) any later version.

The expression files are distributed in the hope that they will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.

For files other than the Nix expression files the same terms apply,
unless explicitly stated otherwise here or in the file header.

You should have received a copy of the GNU General Public License
along with this program (see LICENSE file).

If not, see <http://www.gnu.org/licenses/>.