The NodeFlow plugin for Obsidian allows users to create and visualize node streams for software tools like ComfyUI, Unreal Engine, Houdini, and Blender. It enables the creation of flow diagrams using a lightweight syntax or JSON files, and integrates seamlessly with both Obsidian and VuePress blogs. Users can define tasks, actions, and relationships between nodes using code blocks or external workflow files. The plugin supports various node flow types and offers a flexible way to document complex workflows. It also provides interactive demos to help users understand the syntax and functionality, making it ideal for visualizing interconnected processes in a structured format.