Firefly is an open-source, lightweight AI-powered note-taking center. It supports OCR image recognition collection, hotkey collection, text marking icon collection, and more. It has a powerful Markdown editor that supports almost all Markdown elements. Firefly also provides an AI assistant function that can process the collected information with AI and quickly collect the processed AI content. Firefly also offers Copilot Hub, an AI platform based on large model technology, where users can train models with their own data to build personal knowledge bases. It supports multiple usage scenarios, making work more efficient and intelligent.