Nix is attempting to be the solution you're looking for. Look at the nixpkgs repository: https://github.com/NixOS/nixpkgs

You will see packages for tons of stuff, including:

    * Python packages from PyPi: https://github.com/NixOS/nixpkgs/blob/master/pkgs/top-level/python-packages.nix
    * Haskell packages from Hackage: https://github.com/NixOS/nixpkgs/blob/master/pkgs/top-level/haskell-packages.nix
    * Perl packages from CPAN: https://github.com/NixOS/nixpkgs/blob/master/pkgs/top-level/perl-packages.nix
    * NodeJS packages: https://github.com/NixOS/nixpkgs/blob/master/pkgs/top-level/node-packages.nix
    * Lua Packages https://github.com/NixOS/nixpkgs/blob/master/pkgs/top-level/lua-packages.nix

All these packages in one place, all installed through the same system and automatically built and tested on the Hydra build farm. Nix users have developed tools which automate (as much as possible) the creation of these packages.

I really believe NixOS is the future of the Linux distro, and it's tragic that it's still relatively obscure. It revolutionizes the OS in a myriad of ways, getting everything into the same package repository is just the beginning. For instance, it's fully configuration managed out of the box, using the Nix package manager as its configuration mangement system. Puppet, ansible, saltstack, chef, etc. are all made obsolete. Sure, it still has some rough edges, but it's a great community to contribute to and is improving at a impressive clip. If you're interested in the other ways NixOS is better than whatever you're currently using, I refer you to the website: https://nixos.org/