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A highly extensible Markdown editor. Version control, AI Copilot, mind map, documents encryption, code snippet running, integrated terminal, chart embedding, HTML applets, Reveal.js, plug-in, and macro replacement. Maintained by purocean on GitHub, where it has earned 6,656 stars from the community.

It's actively developed around agent, chatgpt, deepseek, and is a solid reference for anyone building with these tools.