@unseenco/backstage

A fork of Theatre.js, maintained internally by Unseen Studio.

See CHANGELOG.md for what's changed.

Backstage.js is a motion-design library for the web: you define animations in code and refine them in a visual editor (Studio). This fork publishes under the @unseenco npm scope (e.g. @unseenco/backstage, @unseenco/backstage/studio).

For the original project, docs, and community, see theatrejs.com.

Packages

| Package | Description | | --- | --- | | @unseenco/backstage | Runtime animation library (ships in production bundles) | | @unseenco/backstage/studio | Visual editor (dev-time only) | | @unseenco/backstage/threejs | Three.js Studio devtools extension — orbit camera and scene inspection (dev-time only) | | @unseenco/backstage/dataverse | Reactive dataflow library used internally | | @unseenco/backstage/react | React bindings | | @unseenco/backstage/browser-bundles | Pre-built browser bundles |

Development

yarn                  # install dependencies
yarn cli build        # build all packages
yarn typecheck        # typecheck
yarn test             # unit tests
yarn playground       # local dev playground (Vite)

See AGENTS.md and CONTRIBUTING.md for more detail.

Release

Publishing is done via the release CLI (requires a clean git tree and npm access to the unseenco org):

yarn cli release x.y.z

License

This fork inherits the upstream licenses:

• @unseenco/backstage and most packages: Apache-2.0
• @unseenco/backstage/studio: AGPL-3.0 (editor only; not included in production bundles)
• @unseenco/backstage/threejs: AGPL-3.0 (Studio extension only; not included in production bundles)

Original copyright notices are preserved in each package's LICENSE file.