Establish "recommended" backend for Lamprey

[no-reply]

I've put some work into RDF::Blazegraph as a possible recommended backend.

I believe the requirements are:

• Quad support
• Safe blank node handling
• Efficient read/update of individual named graphs

It would be nice to have a fully public domain backend but Rack and Sinatra are under MIT, either way.

[no-reply]

As far as I know, RDF::Blazegraph continues to be the best option here.