motorised thumb turner

attached is a video of the item I am wanting make myself at home. Obviously wont be the exact same but just need a explanation with diagram of how I can make myself something similar at home. what parts I need to get and how I can put them together. It doesnt have to be controlled by remote control. can be battery operated. here is the link for the video: https://youtu.be/RfmJiLTSsP8