ExcelsiorCreative/open-design ? reverse-engineered prompt

Build me an open source, local first design app that feels like a real alternative to Claude Design or Figma. I want it to use whatever coding agent I already have installed on my computer, like Claude Code, Codex, Cursor, Gemini, Copilot, or similar, and if none are available it should still work with a bring your own key style proxy.

The main experience should be simple, I type something like “make me a magazine style seed round pitch deck” or “design a mobile app prototype”, then it asks a few smart follow up questions before generating anything. It should pick a visual direction, use solid design systems and reusable skills, show a live plan and progress while it works, and generate real design artifacts I can preview safely in the app right away.

I want it to create web, desktop, and mobile prototypes, plus slides, images, videos, and other rich visual outputs. Please include export options like HTML, PDF, PPTX, and MP4, and make it easy to run locally and easy to deploy as a web app too. Look up current docs if you need to.