The Orion Publish plugin allows users to easily publish and share their Obsidian notes on the web. It provides simple commands to publish, update, or unpublish notes with just a few clicks. Users can also copy the published note's URL directly from the plugin. The plugin supports custom domains for personalized URL links and offers the ability to create and manage feeds, allowing multiple notes to be grouped together. Orion Publish provides an intuitive interface for web-based note sharing, making it a convenient tool for users looking to showcase or share their Obsidian notes online.