SouleymaneSy7/fem-fx-checker-hackaton — reverse-engineered prompt

Build me a polished foreign exchange converter web app that feels like a real finance tool, not just a basic calculator. I want people to type an amount and see the converted value update quickly, choose currencies from a searchable picker with flags and names, and swap the two currencies with one click. Show the current exchange rate for the selected pair, plus a live markets area with a scrolling ticker and a history chart where people can switch between 1D, 1W, 1M, 3M, 1Y, and 5Y views.

I also want a compare section where one amount can be converted into several currencies at once, a favorites area where users can pin currency pairs and reopen them later, and a conversion log that saves recent conversions and lets people delete entries or clear everything. Please make it responsive, keyboard friendly, and include clear empty and error states instead of blank panels.

Use live rates from the Frankfurter API and persist favorites and the log locally in the browser. If you need details, look up the current docs online.