Plum Box design system for .plu panels: the phone apps' tokens (colors, spacing, radii, type) as CSS custom properties, plus eight framework-free web components.

Client SDK for Plum Box: log in once, auto-connect to the user's box via Plum Relay, and use the Drive API — no IP, port, or tunneling knowledge required.

Zero-knowledge box discovery for Plum: find a user's box from (email, password) via an OPRF, without the relay learning the email, the password, or which box.

Developer CLI for Plum Box apps: create a publisher key, pair your own box, package and sign a .plu, push it, follow its logs, and run a panel locally.

JSON Schema for the Plum Box app manifest (manifest.json) — the single source of truth shared by the plum-dev CLI, the Plum Store upload checks and the box installer.