A map from Ruby to Perl tools, narrowed to ones that I use or recommend.

|| Thing || Ruby || Perl ||
|| Normalize/Layer HTTP request chain from app to webserver || Rack || Plack/PSGI ||
|| Preforking webserver || unicorn || starman ||
|| Nonblocking-IO webserver || thin || twiggy ||
|| Full web MVC stack || Rails || Catalyst ||
|| Lightweight RESTful stack || Sinatra || Dancer, Mojolicious ||
|| Package/dependency installer || gem || cpanm ||
|| Dependency tracker || bundler || carton ||
|| Event-driven architecture, async-IO || EventMachine || AnyEvent, IO::Async ||
|| Common templating || erb, haml || Template::Toolkit, Text::HAML ||
|| Testing framework || rspec, cucumber || Test::More, Test::Spec, Test::TDD::Cucumber ||
|| REPL || Pry || Devel::REPL ||