This is a library of useful GUI and non-GUI C# code, originally used in Banshee. NOTE ** It is not API stable, and so is not installed to the GAC.** There are three ways to use Hyena in your app: 1) Require it as an external dep; copy its .dll files into your project Applications using it should make a local copy of whatever components you use. That is, you should consider Hyena a build-time dependency, not a run-time, since at run-time your app will contain a copy of Hyena. There are variables defined in the pkg-config files that contain assemblies and files needed for a given component of Hyena (eg hyena, hyena.data.sqlite, and hyena.gui). pkg-config --variable=Assemblies hyena pkg-config --variable=Files hyena You can look at PDF Mod for an example of how to use Hyena: http://git.gnome.org/cgit/pdfmod/tree/configure.ac http://git.gnome.org/cgit/pdfmod/tree/Makefile.am http://git.gnome.org/cgit/pdfmod/tree/src/Makefile.am 2) Include it as a submodule in your git repo This is advantageous if you want to closely track and maybe contribute back to Hyena. It also means developers don't have to install Hyena themselves from packages or git. git submodule add git://git.gnome.org/hyena lib/Hyena git submodule update --init git add .gitmodules Then you'll need to add Hyena to your build system. See Banshee's setup: http://git.gnome.org/cgit/banshee/tree/configure.ac http://git.gnome.org/cgit/banshee/tree/Makefile.am You can also include the appropriate .csproj in your .sln. Set them to build under the 'Submodule' configuration, and the binaries will get outputted to ../../bin from the Hyena checkout directory. 3) Bundle the .dll files in your project It's an expedient, but not good form for FOSS projects.