Create a Modal.com FastAPI script for converting ALAC M4A au...

Prompt

Create a Modal.com FastAPI script for converting ALAC M4A audio files to a 16-bit or 24-bit (depending on the source) WAV file without losing data. It must be speed-optimized and bit-perfect. The user should only have to upload an ALAC M4A and the rest should be determined from the source resolution. The script should also extract the ID tags and return them in a JSON file (if there are ID tags) and the image file (if there is one). Return both the Python script and the API spec. Make sure to use Ubuntu when creating the Modal image, because of the recent archival of Debian dependency repositories.