@maija @nyanide There is no restriction on the use of the source code - you can use the source code anywhere you want, even as part of a business.

GPLv2+ and GPLv3+ are compatible with MIT expat and BSD-3 clause, as well as most weak licenses.

GPLv3 just isn't weak - if someone or a business tries to take freedom by applying proprietary restrictions to the source code (or to the binaries), the GPLv3 defends freedom and says no.

The GPLv3 is not Mr Weak Guy - if you choose to make a derivative work and enjoy the 4 freedoms, everyone must get those 4 freedoms.

What is predatory is the practices of malicious proprietary software companies and it's incredible that they accuse the defenses that prevent many people from falling victim to their predatory behaviors, of being "predatory" and people believe them instead of seeing through the proprietary lies.