Packages Collection.
The Perl 5 module MooseX::App::Cmd marries App::Cmd with MooseX::Getopt.
Use it like App::Cmd advises (especially see App::Cmd::Tutorial),
swapping App::Cmd::Command for MooseX::App::Cmd::Command. Then you
can write your moose commands as moose classes, with MooseX::Getopt
defining the options for you instead of opt_spec returning a
Getopt::Long::Descriptive spec.