GNU Affero General Public License v3 (Summary)

This program is free software: you can redistribute it and/or modify it under
the terms of the GNU Affero General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option) any
later version. If you modify the program, or deploy it on a network server, you
must make the complete corresponding source code available to users who interact
with it over the network.