'Native' try {} catch {} semantics for perl using Devel::Declare
C Language Support for Inline
CPAN’s Promise::ES6
Perl Micro Objects
Lightweight class builder for Perl, as a subset of Moose
PhantomJS client-side testing for Mojolicious apps
Type constraints and coercions for Perl
simple DBI wrapper/ORMapper
Test for warnings and the lack of them
Simple runtime debugger for perl