libltc : Linear/Logitudinal Time Code (LTC) Library ( https://github.com/x42/libltc )
libspiro : A library for drawing beautiful curves ( https://github.com/fontforge/libspiro )
libuninameslist : A library of Unicode names and annotation data ( https://github.com/fontforge/libuninameslist )
qm-dsp : A C++ library for audio analysis ( https://code.soundsoftware.ac.uk/projects/qm-dsp )
skia : A complete 2D graphic library for drawing Text, Geometries and Images ( https://skia.org )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a 4nykey
For Paludis use this rsync : rsync://gentoo.zugaina.org/4nykey-portage
If you have a problem : ycarus(-at-)zugaina.org