You have:
a_file
a_container
a_server
docker
sudo
It’s really complicated.
First, for every device you may have more than one queue, and, may be more than one IRQ. Also, everyone lies. Not exactly lying, but misleading.
You may feel like a yaml warrior, shoveling deployments and playbooks, but there is an old grumpy Unix underneath. Not knowing it may cause a lot of pain in simple cases. I would like to mock newcomers about it, but I, myself become entangled in it occasionally.