In May 2025, Jeremias contributed to the FOSSBilling/FOSSBilling repository by implementing automated task scheduling within the Docker image. He achieved this by installing the cron package and configuring a cron job for the www-data user, ensuring cron.php executes every five minutes. This approach leveraged his skills in DevOps, Docker, and system administration, utilizing Dockerfile and shell scripting to streamline background task execution. The solution reduced manual intervention and improved the reliability of scheduled jobs in a containerized environment. Jeremias’s work demonstrated a practical understanding of Linux cron integration and PHP-based automation for production-ready deployment scenarios.