Show HN: Open-Source NotebookLM Alternative (www.noodleflow.ai)

NoodleFlow has unveiled "Open Notebook," an open‑source alternative to NotebookLM that reproduces the familiar upload/chat UI but exposes fully customizable, remixable AI apps for learning workflows. Built-in app templates include short video generators (AI narration + visuals), summary & key‑point extractors, interactive concept mind maps, report creators, comprehension quizzes with per‑answer explanations, and smart flashcards tuned for spaced‑repetition. Every app’s AI workflow is published as source, and users can remix existing apps, create new ones, share notebooks, and run those apps on their own uploaded sources. For the AI/ML and edtech communities this matters because it shifts a closed, single‑provider notebook concept into an auditable, extensible ecosystem. Publishing full workflow code increases transparency and reproducibility of model prompts, chaining logic, and data handling—helpful for researchers, educators, and developers building domain‑specific pipelines or verifying outputs. The project also accelerates community innovation in multimodal learning tools (text→video, quiz generation, flashcard pipelines) and could become a hub for composable learning apps, lowering the barrier to experiment with prompt engineering, retrieval strategies, and custom model integrations without starting from scratch.