Problem scenario
You want to use Helm to manage Kubernetes applications. Helm helps you with packages for changes to Kubernetes (in ways that are similar to yum or apt). Helm uses what are call Charts (.yaml files) that enable you to do more with Kubernetes with less trouble. Helm consists of these two things: a CLI tool and a server component that runs as a pod in a Kubernetes cluster (page 531 of Kubernetes in Action by Luksa).
You have snap installed and configured on your network. You cannot get to the internet. How do you install Helm on a Debian or Ubuntu Linux server?
Solution
Run this command: sudo snap install helm
You may want to see "How Do You Install Helm on Any Type of Linux?"