Another one of my ancient Tutorials, thanks to Matthiaswag for keeping it online, and Jac for refining it. While I can find both of the other Tutorials on the old Beth forum, I can not get access to the FF Tutorial. Also forgot my log in data, and searching 598 sites, is not what I'm planing for the rest of my life. I'll just tag in quotes:

This tutorial will guide you through creating a custom follower, on a separate framework than the vanilla one. This will stop your follower from being automatically managed by a mod like EFF, or AFT. You can also add more features to your follower easily, as well as the framework being more flexible.
This tutorial assumes a basic knowledge of the Creation Kit, and how to set up scripts. No need to write them, but you should be able to edit a few names and such to fit your follower. This could be used for a framework but the tutorial is set up for a single follower.

This is a redesigned tutorial based off of Mofakin's original one, by Jac. Morte is Jac's custom follower, a proof of concept and fully voiced follower. 
Ignore particular names for this tutorial. They're just examples and taken from two mods, not necessary to be the exact same and ignore if they change. Also, certain pictures may not exactly match up to the amount of properties, as some properties were removed through optimization as they were unnecessary. Otherwise, they are accurate, but don't worry if you don't see a property in your script that's in the picture.

The vanilla system uses a global variable to limit the player to one NPC and one animal follower. Setting up a variable for this system is not required, but if you also want to limit your framework to one NPC/animal, create a new global variable (Figure 1).