[[https://jena.apache.org/|Apache Jena]] [[https://jena.apache.org/documentation/tdb2/index.html|TDB2]] provides SPARQL 1.1, SHACL (core and SPARQL), ShEx, and RDF-star.
Jena has been reported to [[https://lists.apache.org/thread/wqr8vg43v2kd3ofrncn1tk9lxy078p83|load Wikidata (20211222_latest-all.nt.gz)]] (16.7 billion triples at 44.8k triples/second in 103h 45m 15s).
Jena has been reported to [[https://lists.apache.org/thread/wvtr4ohjwm5tm9z77q702fbsz2o7gbp2|load Wikidata Truthy (2021-12)]] (6.6 billion triples in 40 hours, at 46k
triples/second).
Jena has various extension mechanism for incorporating extensions, including
overloading the SERVICE keyword.
Jena might provide a way for users to load the data, or a focused subset of the
data, for local use thereby potentially offloading the central SPARQL service.