If you just want to make a rig that does nothing, then it is basically just that.
To make it controllable by the player, you should use Chickynoid.
In short terms, this is a server-authoritative character controller and replacement for Roblox which does not require a Humanoid to work.
To make it work with Chickynoid, you have to make the rig into a Character.
You must then use a mod to apply that character to the player.
Do you need help with that?
I also had trouble understanding how to use this 