Gloss launches as local NotebookLM rival

Gloss is interesting because it is not just “NotebookLM, but local” — it is a developer-first attempt to make retrieval visible, configurable, and auditable.

• –The real differentiator is control: hybrid HNSW plus BM25 retrieval, reranking, and explicit citation paths give power users more trust than typical consumer RAG apps
• –Rust + Tauri makes this feel aimed at serious local desktop use, not a quick Electron wrapper glued to an API
• –Multi-provider support matters because it lets teams start with Ollama or llama.cpp locally and still fall back to hosted models when needed
• –The tradeoff is obvious: NotebookLM wins on polish and turnkey UX, while Gloss is betting that privacy, transparency, and source-grounded behavior matter more to technical users
• –Because it is GitHub-first and still early-phase, this looks more like a promising open-source release for AI builders than a mass-market productivity app