In this mod, you can find a collection of customized "specialized" companions. They're designed by me and contain many customizations. For those of you who are looking for a more "custom" companion, you can download this tool.

As time passes, more and more companions will be added and the chance of seeing them in-game will be higher.

As for compatibility, it is compatible with everything that doesn't use the same preset names.

This is very easy to install. You can just install it the way you do with any other mod.