Prerequisites

• I have searched existing issues and discussions to ensure this feature hasn't been requested before
• I have read the feature request guidelines in the README
• I understand that MeTube development relies on community contributions and the maintainer is not likely to implement this feature
• I have considered if this feature should be implemented in yt-dlp instead of MeTube (if so, please report to yt-dlp repository)

Feature Description

environment variables like AUTO_CLEAR_COMPLETED=true or CLEAR_COMPLETED_AFTER=3600

Implementation Plan

None

Additional Context

What I would like achieve is that I should not clear the completed items list.