podserver is a personal app with one user, its owner, Peter Schrock.
Google Drive. podserver asks only for the drive.file permission: it can see and change only the files it creates. It creates folders of podcast audio and episode details in the owner's Drive and reads them back to play them. It cannot see any other file.
What is kept. The sign-in token is stored on the owner's own server. No data from Google is shared with, sold to, or shown to anyone else, and none is used for advertising or to train models.
Removing access. The owner can revoke access at any time at myaccount.google.com/permissions.