Rygel

Rygel is a reliable implementation of the UPnP MediaServer V 2.0 specification, designed explicitly for the GNOME desktop. It is based on GUPnP and supports plugable Media providers, with a tracker-based media provider available at present. It's mostly written in the Vala language.

When it comes to installation, there is a straightforward process to follow. Firstly, navigate to the directory containing the source code and run `./configure` to config the package for your system. While running, `configure` prints some messages that indicate the features it's checking for. Once that's finished, run `make` to compile the package, and if there are any self-tests, `make check` can be used to run them.

The following step is optional, but you can run `make install` to install the programs, data files, and documentation. Cleaning up the program binaries and object files can be done via `make clean`, while `make distclean` removes the files that were generated during `configure`, enabling the package to be compiled for a different machine. The `make maintainer-clean` target is for package developers but required other programs to regenerate files that came with the distribution.

Overall, Rygel is an exceptional open-source software that GNOME desktop users will appreciate, especially with its UPnP MediaServer V 2.0 specification implementation. Its support for plugable Media providers and straightforward installation process make it an excellent choice for anyone needing a MediaServer on their Linux-based system.