This is not open source. From the site [0]: """ You must not: * Republish material from nest2d * Sell, rent or sub-license material from nest2d * Reproduc

This is not open source. From the site [0]: """ You must not: * Republish material from nest2d * Sell, rent or sub-license material from nest2d * Reproduce, duplicate or copy material from nest2d * Redistribute content from nest2d """ There is also no license described on their GitHub page [1]. At best this is "source available" and the service is free as in "gratis". [0] https://nest2d.online/terms-and-conditions https://nest2d.online/terms-and-conditions [1] https://github.com/VovaStelmashchuk/nest2D https://github.com/VovaStelmashchuk/nest2D