Building Duply, a design system library that turns real product interfaces into DESIGN.md files.

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Duply is a design system library for builders using AI coding tools. Instead of letting your AI guess the visual direction of your product from scratch, Duply gives you ready-to-use design references based on real product interfaces.Each reference turns a complete interface style into a practical <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="http://DESIGN.md">DESIGN.md</a> file that can be used inside tools like Claude, Cursor, OpenAI, and other AI-assisted workflows. It helps define typography, spacing, colors, layout patterns, components, and overall interface feel before you start building.The workflow is simple: choose a design direction from the Duply library, copy the <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="http://DESIGN.md">DESIGN.md</a>, add it to your project, and let your AI coding tool build with clearer visual guidance from the start.Duply is built for vibe coders, founders, designers, and developers who want faster product building without random UI decisions, endless prompt tweaking, or inconsistent screens. It helps you move from idea to polished interface with more structure, better consistency, and a stronger design foundation.