Source codes of Gurux components are available on GitHub.com.
You can also get build components for C# from NuGet.org. Instructions how to start use NuGet you can get here.
Build components for Java are available at Maven Central repository:
http://search.maven.org/#search%7Cga%7C1%7Corg.gurux
Python library is available at he Python Package Index (PyPI):
https://pypi.org/project/gurux-dlms/
We try to improve starting level of Gurux components as low as possible. If you have any ideas what to do next, let us know.