Workflows do not execute without external scheduler configuration

Luigi does not include built-in workflow triggering. Workflows will not execute automatically unless an external scheduler (crontab, etc.) is configured to invoke them.

Configure an external scheduler to trigger Luigi workflows. For data-dependent workflows, use frequent polling (e.g., every minute via crontab) to check for new data availability. Use the pattern: trigger frequently, let Luigi's scheduler handle idempotency and prevent duplicate execution.