brinicle is a disk-first HNSW retrieval engine for vector search, structured item search, hybrid search, and autocomplete. On 1.2M Amazon products, brinicle achieved sub-ms P99 hybrid search (lexical, semantic) while using substantially less search memory than Weaviate, OpenSearch, Typesense, and Meilisearch. The report: https://brinicle.bicardinal.com/...