yesdisown/flaszka ? reverse-engineered prompt

Build me a simple command line flashcard app in Rust.

I want to be able to add flashcards, review them one by one in the terminal, and check my answers as I study. It should keep my cards saved between runs so I do not lose anything when I close it. Make the experience feel clean and easy, with clear prompts, simple commands, and helpful messages when I type something wrong.

If it makes sense, include a way to list cards, remove cards, and maybe shuffle them for practice. I only need a straightforward local app, nothing fancy, just something useful for daily studying. If you need to look up any current Rust docs or best practices while building it, go ahead.