--- title: "Discussion on \"The 14 Open-Source Repos Powering Code-Driven Video in 2026: How We Built 3D AJ the Cat\" | Hashnode" description: "Discussion on \"The 14 Open-Source Repos Powering Code-Driven Video in 2026: How We Built 3D AJ the Cat\". Why viral 'one-prompt' AI videos are actually 9,500-character production harnesses backed by deterministic frame functions, closed-form springs, and contact-sheet critique loops. Here is the full architectural breakdown of all 14 open-source repos..." url: "https://hashnode.com/posts/post-14-open-source-repos-code-driven-video-how-we-built-3d-aj/6af85837285272fcb1c23a71" --- [Feed](https://hashnode.com/feed) / Discussion # [The 14 Open-Source Repos Powering Code-Driven Video in 2026: How We Built 3D AJ the Cat](https://codingcatdev.hashnode.dev/post-14-open-source-repos-code-driven-video-how-we-built-3d-aj?utm_source=hashnode&utm_medium=feed) Why viral 'one-prompt' AI videos are actually 9,500-character production harnesses backed by deterministic frame functions, closed-form springs, and contact-sheet critique loops. Here is the full architectural breakdown of all 14 open-source repos... 8h ago · 18 min read · codingcatdev.hashnode.dev Read the article - [#threejs](https://hashnode.com/tag/threejs) - [#blender](https://hashnode.com/tag/blender) - [#remotion](https://hashnode.com/tag/remotion) - [#mcp](https://hashnode.com/tag/mcp) ## Written by [Alex Patterson](https://hashnode.com/@CodingCatDev) @CodingCatDev · Michigan, US [View profile](https://hashnode.com/@CodingCatDev) Founder @CodingCatDev I’m the founder of CodingCatDev, where we create “Purrfect Web Tutorials” to teach the world how to turn their development dreams into reality. I am a professional full stack developer, and I am passionate about mentoring new developers and helping the community that has allowed me to live my development dreams. I firmly believe that anyone can learn to be a developer. The CodingCatDev team is here to help! ## Responses Markdown supported · ⌘↵ to post No responses yet.