@SuperDicq @jn Either 9front by default doesn't contain proprietary software, or they're just good at hiding it, as I wasn't able to find any in a quick look (I usually find lots in a quick search of the typical proprietary GNU/Linux distro).

I noticed that there there are many source files missing copyright headers, which could be a problem if the license is not listed anywhere or there is no license.

I found several references to proprietary software, as there are drivers that try loading proprietary software, meaning 9front is not a free OS, as it doesn't respect the users freedom.