Show HN: Capsule – Single-file web apps that save their data into SQLite

Capsule is a platform that packages entire web applications—including UI, data, and assets—into single, shareable .capsule files that run locally with SQLite databases, eliminating the need for cloud servers or accounts. Users can generate AI-powered apps from simple prompts and share them like documents via email, messaging apps, or file transfer, with all data stored privately on the user's device and accessible offline. The format uses standard HTML and CSS, ensuring portability across macOS, mobile, and other platforms without vendor lock-in.