Developed and delivered JSON Lines (jsonl) support for the Verl dataset loader, enabling ingestion of line-delimited JSON files alongside traditional JSON formats. This enhancement, implemented in the volcengine/verl repository, streamlined data processing workflows by allowing direct loading of logs and event streams without additional preprocessing. The approach maintained backward compatibility while broadening the range of supported data sources, improving reliability and user experience. Leveraging Python for both data processing and dataset management, the work focused on robust file handling and format detection, ultimately accelerating time-to-insight for users working with diverse datasets in data-driven environments. No bugs were reported.