rubend18/notepadgpt — reverse-engineered prompt

Build me a very simple desktop app called NotepadGPT. I want it to feel like a lightweight chat window where I can talk to OpenAI in plain text, almost like a notepad with a built in assistant.

The key thing is that it should ask me for my own OpenAI API key from a small configuration or settings menu, and save it so I do not have to paste it every time. After that, I should be able to type a message, send it, and see the reply in the same conversation area. Keep the interface clean and easy for a normal person to use, with a main chat screen and a simple option like Enter API Key in the menu.

Please make it usable as a Windows app and keep the setup straightforward. If something is unclear, follow the basic behavior shown in the README screenshots and look up the current OpenAI docs online if you need to.