Yup, this works so nice.

Using traefik or caddy as proxy.

Docker context for remote access - over Internet or vpn, whatever.

Swarm-cronjob for scheduled things.

Labels for things that need to run in particular places.

So easy.

Personally, k8s is fine, but its an abstraction for building a service architecture, not the thing an end user (developer) should ever use. If you are in a big company and you are using helm or k8s yaml files to roll things out, your infra or platform teams have missed something out.. building the platform!