The ZeroVM project includes a number of command line tools that make it easier to interact with ZeroVM and Zwift deployments.
zvsh is a simple shell program that makes it easy to run a single zerovm instance on a local machine. zvapp is a tool to run a cluser of zerovm instances on a single machine.
The ZeroVM Package Manager (ZPM) is the tool that you use to create and deploy ZeroVM applications.
zwiftclient is a set of python bindings which allow you to interact with a zwift cluster. It is orignally based on the swiftclient module with support for additional functionality enabled by zerovm.