- Is Daybook free?
- Yes. Daybook is open source under the MIT license. On this device it needs no account and no server; your own cloud copy runs on the free plans of Vercel and Upstash.
- Where are my days stored?
- On this device, in your browser’s storage, and nowhere else. In the cloud, in your own Upstash database, behind a key only you hold. You can export everything to one file and import it again.
- Which AI agents can use it?
- Any client that speaks MCP: Claude, ChatGPT, Cursor, Codex, Grok, Gemini CLI, VS Code and Windsurf among them. There is also a REST API and a small command-line tool.
- Do I need a Samsung Frame?
- No. The painting of the day hangs in the app on any screen. Frame Dashboard is optional: it puts the same painting and your plan on the TV, and syncs both ways.
- Where do the paintings come from?
- 44 public-domain works, scanned by museums and shared on Wikimedia Commons: Monet, Hokusai, Hiroshige, Cézanne, Renoir, Sisley, Homer, Van Gogh and more. Every credit links to its source.