The main use case for Hoarder is as a "read-it-later" app. You can save interesting articles, tools, or other content they find while browsing on your phone or desktop, and then access and read that content later across devices. The developer built Hoarder as a self-hosted alternative to bookmark managers like Pocket, with inspiration from open-source projects like memos and mymind. They wanted a bookmark manager they could host themselves, with features like link previews and automatic AI-based tagging. You can find more info in the GitHub README.