(specifications->manifest
 '(
   "obs"
   "okular"
   "inkscape"
   "kdenlive"
   "ffmpeg"
   "krita"
   "gimp"
   "libreoffice-fresh"
   "zathura-djvu"
   "zathura-pdf-mupdf"
   "zathura-ps"
   "zathura"))