All copyright-protected files must be licensed in compliance with [[ https://www.gnu.org/philosophy/free-sw.html | FSF ]] guidelines.
NB! This may imply compliance with [[ https://www.debian.org/social_contract#guidelines | Debian ]] guidelines too, but not in all cases.
We (PureOS developers) might locate or forward tasks here upstream as [[ https://bugs.debian.org/cgi-bin/pkgreport.cgi?users=debbugs@pureos.net;tag=nonfree-license-fsf | user-tagged Debian bugreports ]].