> An XQuartz installation consists of many individual pieces of software which have various licenses. The X.Org software components’ licenses are discussed on the X.Org Foundation Licenses page.[1] The quartz-wm[2] window manager included with the XQuartz distribution uses the Apple Public Source License Version 2.[3]
Just looked it up, that Apple license is indeed approved as open source/free software by the FSF and OSI!
> FSF approved Yes (Version 2.0, not versions 1.0, 1.1 and 1.2)[2][3]
> OSI approved Yes
* https://en.wikipedia.org/wiki/Apple_Public_Source_License
Ah, I can see that the binary blob is not needed anymore. Nice.