O'nine is an autonomous home assistant robot designed by Juan Miguel Jimeno, capable of performing a variety of tasks such as feeding fish and retrieving items from the fridge, while being programmable for additional functions. The robot is equipped with a mobile base and a flexible arm with a claw for executing tasks, and is voice-activated via Amazon's Echo Dot and Alexa Skill, which processes voice commands. The communication between the Amazon services and the robot is facilitated by PubNub, using the MQTT broker to enable rapid action implementation through the ROS Robot Operating System. The project is detailed on Hackster.io, providing a comprehensive guide to the software and hardware setup, including components like the Arduino Braccio Robotic Arm, Mecanum Wheels, and the Arduino Uno. The tutorial emphasizes reducing hardware requirements by integrating robotics into smart home solutions, offering a versatile and obedient robot that navigates and operates efficiently within a home environment.