Create a Modal.com FastAPI script for easy file transfer. It...

Prompt

Create a Modal.com FastAPI script for easy file transfer. It should be easy to use. Provide an API spec with the code. Users should be able to upload a file. For this demo it will be stored unencrypted. However, they may set a password to protect it from deletion. If they don't anyone can delete it. This is a basic script for my personal use. Please don't add a master key or anything. I should be able to upload and download files from it. It should be high-speed, and highly optimized. When creating the Modal image, use Ubuntu (because of the recent archival of Debian dependency repositories).