Verifies & compiles reduced-motion-safe, on-budget UI animation for AI-generated web apps. Validated specs → deterministic GSAP/WAAPI-CSS; WCAG 2.2.2 + 2.3.3 checks. MIT core + keyless MCP server. Not Motion.dev/Framer Motion, not the Android/iOS MotionSpec classes, not a video generator.
Programmatic video engine for the web — compile a declarative config into deterministic motion graphics and video (Three.js, GSAP, 2D, HTML). The open engine behind vos.so.