Depending on your data, it may be easy for you to produce CGIF files for each individual resource based on your source data. You can use a conversion system of your choice to produce any RDF format and then provide the resulting data dump. Such transformations can be done using, for example, XSLT, XTriples, TUSTEP, Python routines, or various other means depending on your tech stack.
More information and examples to be provided in a future version of this guide.