Nice. They suggest to use the European Union Public License [0], a copyleft license compatible with GPL and CC BY-SA (and others). [0] https://joinup.ec.europa

Nice. They suggest to use the European Union Public License [0], a copyleft license compatible with GPL and CC BY-SA (and others). [0] https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-12 https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-1...