A simple `make help` (or just `make`) outputs:

```
Help
====

This a Habust-generated Makefile:

* `make help`: Display this help message
* `make start`: Start the Qemu VM (this grabs the terminal).
* `make setup`: Do the preliminary setup of the Qemu VM (requires the VM started in another terminal).
* `make kill`: Kill the Qemu VM.

```