Show HN: I built a mental map learning interface to learn anything faster
akshayaggarwal Sunday, December 28, 2025
An open-source, visual interface for LLMs that forces output into a graph structure (React Flow + Dagre). Instead of linear text, every response is a node. I tweaked the system prompt to be purely Socratic...it asks questions to help you expand the graph yourself. Includes browser-local session persistence and image generation for complex concepts.
Stack: Next.js 16, React Flow, Gemini 3 Flash. Privacy: 100% local storage (no signup/database). Cost: Free (Open Source). Demo: https://nodenest-blond.vercel.app/
Summary
The article discusses the development of a Nest.js application, a popular Node.js framework for building efficient, scalable, and enterprise-grade server-side applications. It covers the setup, structure, and key features of a Nest.js project, providing a comprehensive guide for developers to get started with this framework.
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github.com