MoOde (formerly known as TCMODS) is based on Debian (a well-known Linux distribution).
The most important feature is the menu which will allow you to change preferences without typing a single string of code.
It is as simple as tweaking your Windows or Mac favorite software.
You can choose which DAC you want to use, buffer size during playback, DSD support and so on, then attach a HDD or your NAS and update your library.
This is it.