Mark Zuckerberg‘s got a couple of pro household helpers on his hands!

The Facebook founder and CEO, 35, couldn’t resist showing off his daughters’ mad skills (and sweet cooperation!) ina video he shared tohis social-media platform on Sunday.

In the cute 15-second clip, 20-month-oldAuguststands at the sink and rinses dishes with the help of her mom,Dr. Priscilla Chan, before handing them to big sisterMaxima “Max,”3, to load into the dishwasher.

“Parenting milestone unlocked,” Zuckerberg captioned the adorable video.

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Mark Zuckerberg’s daughters Max and August.Facebook

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While some household tasks are best performed with good-old-fashioned teamwork, the proud husband and father has a habit of leveraging technology to make day-to-day life more efficient for his family of four.

Last month, Zuckerberg revealed he hadinvented something he calls the Sleep Box— a small wooden box that sits atop his wife’s nightstand and puts out a dim light between the hours of 6 and 7 a.m. — to help Dr. Chan sleep at night, since “Being a mom is hard” and makes getting quality shut-eye quite the challenge.

“As an engineer, building a deviceto help my partner sleep betteris one of the best ways I can think of to express my love and gratitude,” he wrote. “A bunch of my friends have told me they’d want something like this, so I’m putting this out there in case another entrepreneur wants to run with this and build sleep boxes for more people!”

Mark Zuckerberg and family.Mark Zuckerberg/Instagram

Mark Zuckerberg

RELATED VIDEO: Mark Zuckerberg Shows Off Invention He Created to Help His Wife Sleep Better: “Being a Mom Is Hard”

Taking a leaf out ofTony Stark’s (a.k.a. Iron Man’s)book, Zuckerberg previously designed an artificial-intelligence unit to help run the home he shares with Dr. Chan, 34, and a then-1-year-old Max. The system’s name? Jarvis, after the fictional genius engineer’s own in-home AI.

“Jarvis, your Mandarin is so soothing,” Zuckerberg told the system as he entered his daughter’s room to demonstrate how it worked in conjunction with Max’s morning routine.

“Xièxie,” Jarvis answered, which roughly translates to “Thank you” in Mandarin.

source: people.com