Quadlets also support a .kube file. I have a similar use case where I have 6 containers I want to all run on the same network. So have a k8s YAML file that has a pod with the containers, their configuration and path mapping and then a have a `service.kube` file with a '[Kube]' section and a 'Yaml=/path/to/config.yaml' directive. That creates a single service to stop/start with systemd and has all the containers running on the same network in a single pod.
