AWS just dropped ECS Daemons

The concept of Daemons has been in computing for a long time.
AWS just brought it to the world of cloud computing in the form of ECS Daemons.
This feature appears to be specific to Amazon ECS Managed Instances, not Fargate which makes sense once you hear what it does.
One of each of the daemon tasks would get booted up per managed ECS Managed Instance before any of the other tasks get booted up.
From there, the Daemon task can do advanced orchestration and/or specialty monitoring of the other tasks that spin up on that instance.
This new functionality should open up some interesting use cases/infrastructure designs.
Question for you:
What use case do you have for ECS Daemons?