Show HN: A small, crazy fast hybrid search engine written in Rust

Category: infrastructure

Tags: rust, search-engine, hybrid-search, nlp, information-retrieval

Score: 7.0/10 (Innovation: 7, Technical: 8, Documentation: 7, Utility: 6)

Lume is a hybrid search engine and agentic document memory system written in Rust, combining BM25 lexical search with dense semantic embeddings and graph-guided query expansion. It offers a CLI suite and MCP server for indexing, searching, generating text via Markov chains, and autonomous document summarization, making it a versatile tool for advanced information retrieval and AI agent integration.

Target audience: backend devs, data engineers, ai researchers, devops

Repository: https://github.com/deepbluedynamics/lume · Rust · 1 stars

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