This is stupid. The entire reason that people have issues with multiple versions of software is that they had to "roll their own" and don't bother to update it, thus they hit incompatibilities and need some sort of "bundling" utility like this.

If you're running any form of Unix, it's very likely that you already have a package management system. It's also likely that system has more features, and is better designed from a management and consistency perspective than any one of CPAN and it's descendants (gem, cabal, etc.).

A much better solution - either make your own packages, or use a tool like FPM (https://github.com/jordansissel/fpm) to make native packages, then deploy the result as you would any other package.

I hope for an era when running CPAN or gem interacts with the package manager, building a real OS-level package and installing/deploying it, rather than the current "you need to run this script incantation on every production machine, oh, and you need the whole toolchain too" idiocy.