The apps directory contains .desktop files for commonly used non-TDE
programs which kappfinder installs into the applnk directory of KDE.

kappfinder used to install .directory files as well because in the past the
non-TDE applications were installed in their own directory seperated from
the main KDE applications. This is no longer the case, all .directory files
are maintained in tdebase/applnk.

Terminal applications however are in a seperate directory. This is done by
creating a subdirectory for the category (e.g. Internet/Terminal) and
installing the .directory from tdebase/applnk and the application .desktop
files from tdebase/kappfinder/apps/