Hmm ..

I think I'll do something in between, .. a set of documentation on how to install and run the softwares , and a set of rpms which contains Fedora integration (systemd service, profile.d files, wrapper scripts, etc) to make things works better with Fedora if the user followed the convention provided by the docs. Which I think it's somewhat similar with the approach of some existing foss game engine packages which requires separate, manual download of data files / proprietary components. 

Thanks for the feedback!