Facebook founder Mark Zuckerberg has said he wants to build an artificially intelligent assistant to help run his home and assist him at work.
Zuckerberg, who commits to a new personal challenge every year, revealed his plan in a Facebook post.
"You can think of it kind of like Jarvis in Iron Man," he wrote, referring to the artificially intelligent butler who appears in the Marvel comic books and films.
Zuckerberg said he would start the project by exploring existing technology, and then begin teaching the technology to understand his voice so that it can learn to control everything in his home, such as music, lights and temperature.
His plan also includes teaching the assistant to let his friends into his home by looking at their faces when they ring the doorbell.
Zuckerberg also wrote in the post that he wants the assistant to visualise data to support him at work.
He said: "This should be a fun intellectual challenge to code this for myself ... I'm looking forward to sharing what I learn over the course of the year."
Other challenges Mr Zuckerberg has taken on in recent years have included reading two books every month and learning Mandarin.