Video you can diff.

Deterministic by construction, so the preview is the render, in the browser and on the server. MIT, no seat count, no telemetry.

$ npm i -D @vosjs/cli

Open a program →

Made with vosso from a take of Engine film. Open the cut →

What it makes

Six programs from the shelf. Every one is source you can open and data you can change.

All programs →

Louver TideLight raking across a louvre.

Molten driftLens arcs drifting on black.

Terrace, Step AscentStepped planes, at any resolution.

Chiffon SapphireA grained sapphire field.

Obsidian HelixA swept ribbon of strands.

Phosphor GreenA dithered phosphor field.

Edit the data, not the program

A program is constant and everything editable travels in its data. An agent's edit is a patch, a human's is the studio. Both re-render, neither re-runs.

How the studio edits live →

This program declares no knobs.

doc.json

// move a knob: the patch appears here
  "data": {
  }
// SET_DATA; nothing re-runs

Open, and built for agents

Everything that runs on your machine is MIT. Runs anywhere; hosts best on vos.so.

github.com/vosjs/vos →

vosjs / vosPublic

Deterministic video as data, in the browser and on a server.

TypeScriptMIT license@vosjs/* on npm

MIT. No seats, no license review, no telemetry.

Claude Code

$ vos render out/ moonstone.mp4 --size 3840x2160

✓ the same frames the browser drew

→ moonstone.mp4

The same frames everywhere. Browser, CI and server.

vos.so/llms.txtfor agents

# vosso: video that deploys like your app

> Host your video at a link that plays,

> keeps every version and re-renders …

## Route by ask

Agents read the contract. One file, written for a context.

What shipped →vs Remotion →vs HyperFrames →Remotion vs HyperFrames →