01An interactive world engine
The recipient explores a scene instead of scrolling through a conventional greeting page.
Technical detail +
- World-specific panoramic environments with interactive keepsakes.
- Keyboard controls, responsive panning, focus handling, and full-window views.
- Personalized surface content within the room’s visual perspective.
- Scene variants preserve the physical presence or removal of optional objects.
Digital storytelling can become a place to explore, with its own pace and emotional arc.
02A structured creation experience
Personal content stays editable through a guided create, preview, and reveal journey.
Technical detail +
- Typed gift and keepsake models for letters, photos, albums, tickets, books, and surprises.
- Local draft persistence and preview before publication.
- Personal names, messages, imagery, pets, and scene-specific details.
- Validation retains the draft when a step cannot complete.
Rich personalization can be approachable without exposing the underlying complexity to the sender.
03Publishing at the edge
A private draft becomes a fixed recipient experience backed by persistent publication records.
Technical detail +
- Cloudflare Workers coordinate publication and delivery APIs.
- R2 stores gift snapshots and scene media; D1 stores metadata and publication state.
- Idempotency checks make retried publication requests safe.
- Versioned assets and cache policies separate immutable artwork from changing application code.
A media-rich experience can be shared as a reliable link without requiring the recipient to create an account.
04Sound and media with intent
Audio and video support the scene while respecting the visitor’s playback choices.
Technical detail +
- Web Audio ambience mixing with fades, gain controls, and lifecycle cleanup.
- Spotify catalog search and visible player integrations.
- YouTube and Vimeo media presented through controlled players.
- Playback is subject to user gestures and each provider’s rules.
An immersive experience can include sound and personal media without surprising visitors with uncontrolled playback.
05Private sharing and access
Creator identity and recipient access have different responsibilities.
Technical detail +
- Clerk authenticates creators before hosted publication.
- Server-side checks control world availability and premium eligibility.
- Recipient links use random capabilities, with token hashes in publication records.
- Public link previews use scene artwork rather than personal gift content.
The sender gets an account-backed workflow while the recipient gets a simple, personal arrival.
06Media checks and release discipline
The platform includes the less visible work needed to publish user-created experiences.
Technical detail +
- Image and video checks using TensorFlow.js and NSFWJS, including server-side moderation paths.
- Upload size, type, origin, and request limits.
- Portable recipient-player packaging and self-contained export code.
- Separate environment configuration, versioned releases, and asset-integrity verification.
A creative product can have real publishing controls and a maintainable release process beneath the artwork.
