Moose minus the antlers

Moose, a powerful metaobject-fuelled extension of the Perl 5 object system,
is wonderful. (For more information on Moose, please see 'perldoc Moose'
after installing the perl-Moose package.)

Unfortunately, it's a little slow. Though significant progress has been
made over the years, the compile time penalty is a non-starter for some
applications. Mouse aims to alleviate this by providing a subset of Moose's
functionality, faster.