Tsi2216/infinity_marketplace ? reverse-engineered prompt

Build me a polished marketplace web app called Infinity Marketplace.

I want a clean landing page, a way to browse products or listings, view details, and a simple flow for signing in and posting or managing items. It should feel modern and easy to use on desktop and mobile, with a nice storefront style and a few reusable screens for things like the home page, listing pages, and a basic dashboard.

Use the existing project setup and keep it simple but real, since I want to be able to add more features later. If you need current guidance for the libraries or best practices, look up the latest docs online. Make the UI look good by default, and wire up the backend pieces in a way that can connect to Supabase for data and auth.