krysnkem/archonit_crypto_app — reverse-engineered prompt

Build me a Flutter crypto price app that shows a clean scrolling list of cryptocurrencies using live data from CoinCap. I want each coin row to show the name, symbol, current price in a professional readable format, and a dynamic RGB color accent so the list feels lively.

Please make it load 15 coins at a time and automatically fetch more when I scroll near the bottom. Add pull to refresh, proper loading screens, empty states, and friendly error messages if the API fails. The app should handle the CoinCap API key safely through a local secrets file that is not committed.

Keep the code organized and easy to understand, with a simple ValueNotifier based state approach, a repository layer, safe API calls, and clean models. It should run on Flutter mobile and be ready for tests. If you need exact CoinCap details or current Flutter setup commands, look up the current docs online.