TEIN AI (sirioberati) · Voice-synced motion graphics

YouTube AI Motion Graphics

A repository from TEIN AI containing 74 animated HTML explainer boards for YouTube videos, including charts, diagrams, Venn diagrams, timelines and heatmaps. The boards are 1920 × 1080 HTML pages with CSS animation, made with Claude Design and Claude Code. Whisper word-level timestamps are used to time each element to the word that names it. For export, tools/export.py opens each board in Chrome, pauses the animations and steps them to the exact time of each frame, screenshots it, then joins the frames with the voice audio using FFmpeg into an MP4. The repo also includes every prompt from the accompanying video, three Claude skills (board brief, board system and board sync), and a checks file the AI uses to review every frame. It needs Chrome, Python 3.10+, Playwright and FFmpeg, plus faster-whisper for transcripts. It is MIT licensed, was created on 27 October 2026, has 113 stars and has no tagged releases.