This looks like a decent alternative to faiss. Has anyone used zvec enough to compare with other options? The in-process model is really nice when you want to layer it in with your own filtering and ranking, where the vectors are just one component of an bigger, existing search system.
If the benchmarks are to be believed, and assuming ~0.93 recall is "good enough" for the use case, this vector DB is seriously fast: about 5x the queries/sec of OpenSearch and 19x Milvus.