@Inginsub Please read the GPLv3 immediately: https://www.gnu.org/licenses/gpl-3.0.html or at least read the quick guide: https://www.gnu.org/licenses/quick-guide-gplv3.html

All licenses in the GPL family allow you to use the software for any purpose, modify it and share it modified or unmodified, even for commercial purposes - they just doesn't give you the *power* to restrict others.


For a binary released into the public domain, there is no copyright, so the GPLv3 wouldn't apply for example.

GPLv3: "Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.", so you can hardcode it unmodified in a public domain binary, resulting in an aggregate, with a public domain binary alongside a copy of the GPLv3.