Animation Keyframes to movement via script

Hello! I am trying to make a custom animation loader, manager, etc etc instead of using ROBLOX’s built-in animation instance for my branch off from luau. So, my question is: how would I be able to make a animation with something like ROBLOX’s animator, Moon Animator, etc, get the keyframe from said animation, and make a script do exactly what the animation would do if you were to play a instance of the animation? I am trying to do this so I wouldn’t have to upload any animations onto the ROBLOX client, but my only thoughts on how to do this would be to move the Motor6Ds of a player in a big spaghetti code module of sorts. Any ideas on how I could go around doing this? Thanks! If you have any extra questions on what I am asking or anything else, ask away, I need to figure this out ASAP!!!