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Open-source local NotebookLM alternative powered by Nemotron + RAG (no cloud API needed)

Reddit r/LocalLLaMA / 3/14/2026

📰 NewsDeveloper Stack & InfrastructureTools & Practical Usage

Key Points

  • Open-source local NotebookLM-style assistant that runs without cloud APIs, powered by Nemotron and RAG.
  • It can ingest documents, URLs, or YouTube transcripts and uses a local Nemotron-Nano-9B LLM via vLLM with a thinking mode and SSE streaming.
  • It stores structured summaries in SQLite and performs RAG search using SQLite FTS5 with BM25 ranking, with optional DuckDuckGo web search to supplement data.
  • It supports deduplication via SHA-256, persistent chat history export, and provides a link to the SoyLM project for building it locally.
Open-source local NotebookLM alternative powered by Nemotron + RAG (no cloud API needed)

https://preview.redd.it/unt7sqjhdxog1.png?width=1364&format=png&auto=webp&s=63936b7ce08703edb673625a26375e7625a0708d

What it does

Upload documents, URLs, or YouTube videos as sources. SoyLM analyzes them with a local LLM, stores structured summaries in SQLite, and lets you chat with your sources using RAG (FTS5 + BM25) and optional web search (DuckDuckGo).

Features

Source ingestion — Files, web URLs (with Playwright JS rendering fallback), YouTube transcripts

Local LLM — Nemotron-Nano-9B via vLLM (OpenAI-compatible API), thinking mode for inference

RAG search — SQLite FTS5 full-text search with BM25 ranking

Web search — DuckDuckGo integration for supplementing source data

SSE streaming — Real-time streamed responses

Chat history — Persistent chat logs with JSON export

Deduplication — SHA-256 hash prevents duplicate sources

if you want to build: https://github.com/soy-tuber/SoyLM

my media: https://media.patentllm.org/en/

submitted by /u/Impressive_Tower_550
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