LadybugDB LadybugDB is an embedded, in-process property graph database — no server process required. It uses the openCypher query language with a required, predefined schema (unlike Neo4j), columnar disk-based storage, vectorized query execution, and serializable ACID transactions. Quick orientation - Schema-first : you must create node/rel tables before inserting data - One primary key per node table — automatically indexed, unique, non-null - Walk semantics : repeated edges allowed in MATCH (unlike Neo4j's trail semantics) - One write transaction at a time ; multiple concurrent reads are fi…