Reddit's Alexis Ohanian was the one big tech mogul spotted at the royal wedding, and he documented the whole thing on Twitter

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Reddit's Alexis Ohanian was looking fly for a tech guy at the royal wedding of Prince Harry and Meghan Markle.

• American celebrities turned out for Prince Harry and Meghan Markle's royal wedding at England's St. George's Chapel on Saturday.
• Thanks to wife Serena Williams, Reddit cofounder Alexis Ohanian was the only tech industry A-lister spotted at the biggest wedding event of the year.
• Ohanian shared behind-the-scenes photos from the royal wedding on Twitter.
• The couple scored some of the best viewing seats at St. George's Chapel.

Thanks to wife Serena Williams, Reddit cofounder Alexis Ohanian scored an invite to the royal wedding of Prince Harry and Meghan Markle at England's St. George's Chapel on Saturday.

"In London for my wife's friend's wedding," Ohanian shared to Twitter on Saturday.

So casual.

Celebrities, including Oprah, Amal and George Clooney, Elton John, David and Victoria Beckham, and many of Markle's "Suits" costars descended on Windsor Castle for the royal nuptials.

Ohanian, who is best known as one of the cofounders of Reddit, where he is still executive chairman, was the only tech industry A-lister spotted at the wedding event of the year.

His public profile has risen significantly since marrying tennis great Williams in 2017. The unlikely couple welcomed a baby girl, Alexis Olympia Ohanian Jr., in September.

Ohanian had fun on Saturday sharing behind-the-scenes photos from the royal wedding.