Show HN: Memex – A local-first AI journal that keeps everything as Markdown (github.com)

Memex, an innovative open-source AI journal available for iOS and Android, introduces a unique approach to journaling by allowing users to capture life's moments in fragments—be it text, photos, or voice—and leveraging a multi-agent AI system to organize this data into structured, insightful cards. Unlike conventional journaling apps, Memex emphasizes a local-first philosophy, ensuring that all user data remains stored on the device without requiring a Memex account or cloud storage, enabling users to integrate their preferred LLM providers for AI functionality. This release is particularly notable for the AI/ML community as it showcases a robust multi-agent architecture. Each AI agent manages specific domains like knowledge extraction, insight discovery, and task organization, facilitating a personalized journaling experience. Memex supports a variety of external LLMs including OpenAI and Claude, promoting adaptability and user control over data. Furthermore, the platform's use of Markdown for record keeping allows users to easily archive and move their data across different applications, ensuring a seamless experience. The incorporation of customizable AI characters that engage with users adds a layer of companionship, making this AI journal not just a recording tool, but a dynamic platform that grows with its user.