Qvarn is free and open source software. You can redistribute it and/or modify it under the terms of version 3 (or later) of the GNU Affero General Public License (GPL).
We've chosen to use this license because most users will interact with Qvarn over a network. Using the GNU Affero GPL ensures that all users – not just system admins – have the right to receive and review any changes to the source code for Qvarn.
To view the GNU Affero GPL, please visit http://www.gnu.org/licenses/agpl.html. For more information on why one would choose GNU Affero GPL over other open source licenses, please visit http://www.gnu.org/licenses/why-affero-gpl.html.