Yes, you can use Vapor on any site.
You can also change the name of the resulting package by editing the vapor.php file on lines 25, 26 and 27 to set the constant variables to what you want. By default, these are commented out and it will use your hostname, the date, and the version of MODX being packaged.
define('PKG_NAME', 'BootstrapAgency');
/*define('PKG_VERSION', '1.0.0');
define('PKG_RELEASE', 'pl');*/
will produce something like bootstrapagency-2015-02-04-2.3.3-pl.transport.zip
There is also Teleport, if you want to use Vapor's big brother, but it's command-line only.