Ladybug: DuckDB of Graph Databases

Ladybug is still very limited in terms of use cases and functionalities. Unless you just want some OLAP graph query to be faster, and that's it... You could use a fully functional DBMS with Graph OLAP functionalities, like ArcadeDB (Apache2 license):

https://arcadedb.com/blog/graph-olap-engine-the-fastest-grap....

Most importantly, ArcadeDB committed to never change its license, to avoid leaving users left in panic when KuzuDB (which Ladybug forked) was acquired by Apple and killed the very same day:

https://arcadedb.com/blog/open-source-forever-why-arcadedb-w...

(Disclaimer: I'm the founder of ArcadeDB, ask me anything)