Earlier quoted context omitted.
They are (slowly) releasing more and more components https://forum.sailfishos.org/t/open-sourcing-proceeding/2468... https://github.com/sailfishos/sailfish-weather/ https://github.com/sailfishos/jolla-camera It's still more open than AOSP
> It's still more open than AOSP I don't think this is true at all? AOSP is completely open source modulo driver blobs (which Sailfish has too) and Google services. One can make a fully functional system, modulo drivers, out of only open-source components using AOSP. It's not possible to do this using Sailfish; the compositor, UI libraries (Silica), and most of the "core" apps are still closed source.
And OSS projet based on the SFOS core exist : https://nemomobile.net/, https://github.com/nemomobile-ux