http://cvs.savannah.gnu.org/viewvc/*checkout*/gnumaint/pkgblurbs.txt

Looking at www/server, it seems there are currently some translations
of the blurbs for ru, fr, de, ja (just judging by file sizes).

I suggest the path of least resistance is to take these web translations
as the source for the others, and not try to involve TP for them.

    Guix would still have to use the TP for non-GNU packages, though Iœôòùm
    not sure how to handle that (different domain?).

I don't see why it needs to be a different domain, exactly.  Anyway,
coordinator@translationproject.org is the best advisor on all things TP.

FWIW,
k