The installation of the guenther cli tool is as simple as installing a global composer package.
composer global require "guenther/guenther"
You can use Günther to create a new extension boilerplate. You can also use it to add classes for controllers, fields, listeners, etc.
Note: Always run guenther inside the root folder of the extension.
# Bootstrap a new extension guenther init Ohlandt Awesome
# Create a new Controller class guenther make:controller GalleryController