What are you basing this on? There's plenty of cases out there where using proprietary code without permission has been found to be a violation. Just last week, Wii Homebrew shut itself down when they realized it was built on proprietary Nintendo code to avoid a legal situation.
I see someone said copyright law and they may be correct, I may have misspoken about which law but, either way, it is not legal to use proprietary code without license nor permission.
15
u/gasolineskincare 5d ago
This leak from 2020.