qmd Search

Search a local markdown knowledge base semantically with qmd. Five modes — BM25 keywords, vector similarity, hybrid (expansion + rerank), literal native-script grep, and a fused find — all running on-device. The key advantage over Obsidian's built-in search: it matches meaning, finds notes that share no words with the query, and works across languages (e.g. a Russian query retrieves English notes).

When to use which mode

• hybrid (query) — default. A real question or fuzzy intent ("how do I stop overengineering"). Best quality; first run downloads reranker/expansion models (~one-time slow).
• vector (vsearch) — fast concept lookup ("notes about embodied computing").
• BM25 (search) — an exact keyword, name, or filename. Instant, no model.
• grep (-m grep) — literal fixed-string ripgrep over the .md files. The audit path for proper nouns, transliterations, exact phrases, Russian stems/inflections, and absence checks. Bypasses the index; matches only the exact script/spelling you type.

Bilingual / proper-name rule (do not skip)