But sorry. This was more than a decade ago, I've done dozens and dozens of projects since then with Java, C, Ruby, Python, Clojure, Scala, Javascript, Coffescript and Typescript and more, so I can't remember 'exactly' what libaries I was using more than 10 years ago in some Perl projects.
"Now you're addressing completely different"
I beg to differ, in my book credit card processing during e-commerce checkou and accessing backend services with HTTP are in the problem domain of 'web development', but it might be different for your 'web applications'.
I prefer using libaries instead of developing everything on my own, so usually I use 10-20 libraries for a project beyond a web framework, e.g. credit card management, HTTP library,.... YMMV and if a web framework is all you need, hurray to you.
My experience from a decade ago was different than most here, I had not so much luck with CPAN.
Many libraries and projects, but most of them alpha or abandoned. It took a lot of time to find stuff that was built well enough for production and was still maintained.
Wow, I would never want to work with someone as bossy as you, sir.