A Northern Arizona University freshman and "Seinfeld" fan rigged his dormitory door to play musical cues from the quintessential "show about nothing."

What sitcom hijinks ensued were entirely up to him.

Evan Genuise, 18, told The Arizona Republic that he wanted to replicate a device he'd seen a tutorial for online. The computer science and electrical engineering student said he was a fan of the long-running '90s NBC sitcom.

"I thought it would be hilarious to have one in my dorm room, so I looked around for the parts I needed to build it and used the code someone I'd watched use," he said. "It took me about a month to work on it off and on."

Genuise posted the result on Twitter this month in a now-viral clip that shows his unsuspecting friend, Aaron Guerrero, entering the room. Guerrero's expression sinks as he realizes what he's hearing in the 10-second clip.

As of Oct. 13, the clip garnered more than 49,000 retweets and 109,000 likes.

"I just thought it was funny and didn't expect it to blow up this much. It's insane but I'm really happy people like it," Genuise said. "Now, I just leave my door (unlocked) because there's a couple people who stop by once a day at least."

Genuise said he may leave the door sensor in place for the next lucky pair of roommates to use. The device is loaded with several tunes by Jonathan Wolff, who composed the cues used in the series starring comedian Jerry Seinfeld, Julia Louis-Dreyfus, Jason Alexander and Michael Richards.

Geniuise became interested in electronics through his late friend, Stephen Foster, who built a portable Nintendo 64.

"He's my main inspiration for getting into electronics in general," Genuise said. "He'd definitely find it funny."

As the clip continues to saturate online — it was retweeted by NAU — Genuise said he's been surprised by the attention it has received. He said he'll likely make sensor duplicates for his friends, and has received requests online from strangers hoping to use the same cues.