How to create a Mod Manager compatible mod?

[Jinraider]

For some reason I don't understand myself, I found the owner's room video replacement trick still works for my game. However, I've been testing it by replacing the file manually; using the mod manager would be a lot faster, more convenient (especially if I choose to upload it later...) and less of a hassle.

 

So is there a way this can happen? remember, the mod has to be placed in the Common folder of DX_11_global_data.