At some point we need to agree a list of category names (or to just
use the top level of the module hierarchy instead).
Regarding this, we'll make things (a little) easier by reusing
(roughly) the categories from existing package systems.
The list you gave looks suspiciously like the XDG Menu Standard from
FreeDesktop.org. I think that would be better to tie into that than
invent another. It is extensible.