On the sourceforge download page you can download Windows, Linux and Android binaries for VideLibri. Since all pre-configured libraries are in German-speaking countries the GUI of VideLibri is currently also in German.
The source is stored in a mercurial repository.
Since the program is written in FreePascal/Lazarus, it should be very easy to compile it. Just open the bookWatch.lpi in Lazarus and select your platform/OS in the project settings. The repository contains also the source of most dependencies, for other dependencies there are excessive comments in the code that tell you where to download them and are shown in Lazarus during the compilation.
You can compile and run it on Windows/Linux/Mac with the gtk/qt/win32/cocoa interfaces. The motto of Lazarus is "Write once, compile anywhere", so VideLibri is supposed to run on any platform and device, although Lazarus does not always delive on that promise.