Show HN: Explainroo, Open Source Framework to Make Explainer Videos with Claude

Everyone is making videos with Opus 5.5 right now (Sonnet 5.5 is also good at it), so I built a small open source kit to give you a head start. Just point Claude or Codex at the repo and say what the video should explain. It also makes great product demos.

Examples: https://www.explainroo.com/videos/