Hi!
In order to solve the translation-issues: I think KDE could very well
use Scripty to insert translations into the AppData files. However, I
am currently thinking about adding a new element to specify a
gettext-domian to fetch trabslations from. The problem is that, in
order for the AppStream generator to do the translation, the gettext
files would have to be shipped with the same package, which might not
always be the case, if you have language-packages.
So I don't think this would work.
Are there other suggestions on how to make trabslating AppData files
easier for KDE?
Cheers,
    Matthias