Warning! This command can be dangerous!
This command lets a web page run commands on your system. Although this will change in the future, for now it should be considered insecure by default.
There are two reasons why you would want to run it:
nstal is a new way to write tutorials and installation procedures. An nstaller not only describes what should be done, it can also run the steps automatically.
nstal CLI tool is in charge of linking the web page to the local system.