| perl540Packages.DataURIEncode | Allow complex data structures to be encoded using flat URIs |
| perl540Packages.PerlDestructLevel | Allow to change perl's destruction level |
| perl540Packages.PodCoverageTrustPod | Allow a module's pod to contain Pod::Coverage hints |
| perl540Packages.TemplatePluginClass | Allow calling of class methods on arbitrary classes |
| perl540Packages.ClassObservable | Allow other classes and objects to respond to events in yours |
| perl540Packages.MooseXAttributeChained | Attribute that returns the instance to allow for chaining |
| perl540Packages.Xapian | Bindings allowing Xapian to be used from Perl |
| perl540Packages.TextRoman | Allows conversion between Roman and Arabic algarisms |
| perl540Packages.EmailValidLoose | Email::Valid which allows dot before at mark |