I need a straightforward cryptocurrency converter that lets a user enter an amount, choose two coins, and instantly see the converted value. Nothing fancy—just a clean interface backed by live price data from a reliable API such as CoinGecko, CoinMarketCap, or a service you recommend. Stack and platform are open; a lightweight web page in vanilla JavaScript works, but React, Vue, Flutter, or an Electron shell are also fine. Start with a small list of popular coins and structure the code so I can add or remove tokens later without touching the core logic. Deliverables • Complete, well-commented source code • README with setup, run, and deployment instructions • Short screencast or screenshots showing the converter in action Acceptance criteria Entering an amount, selecting any supported pair, and receiving an accurate result that matches the API at that moment—all within roughly two seconds. Let me know which tech stack you prefer and how quickly you can have a working prototype ready.