To create an RPM package you just need to make sure that all dependencies
are met, meaning all files and resources included in your package or
packages depending on it.
As Mojo (at least the pre 2.0 versions) just needs perl 5.8 or later even
building for CentOS should be fairly simple.
The best approach would be to use local::lib or carton to get all required
dependcies that are not available from a RPM repository into your apps
directory and to be packaged with it.
Just take a look at the .spec file for building RPMs for one of the
existing Perl modules.
Cheers and good luck