If you’re terrified of coming across a spoiler before watching a favorite TV show, you can scrupulously avoid the Internet, the water cooler, or anywhere else that’s abuzz with talk about the latest twist in the show you love.

Or you might want to load up Twivo, a new app for Twitter that blocks any mention of TV shows and characters you set it to censor. Aside from its usefulness, the really cool thing about Twivo is that it was created last month by a 17-year-old female coder who builds robots in her spare time.

Jennie Lamere cooked up Twivo for TVnext Hack, a hacking contest put on by ad agency Hill Holliday and API management software developer Mashery. She was profiled this week(Opens in a new window) by Mother Jones, which described the high school senior from Nashua, N.H. as the only script kiddy at the all-girls Academy of Notre Dame in Massachusetts.

She was also the only female entrant in TVnext Hack—not to mention the only one who completed a project on her own, according to Mother Jones. Lamere won her sub-category, “Best Use of Sync-to-Broadcast” at the April 27 event, then went on to beat out about 80 other competitors to earn the Best in Show award, a TVnext Hack spokesperson told the magazine.

Lamere found the lack of other female participants in the hackathon “a little weird … [b]ut it’s something that I’m used to at these things,” according to Mother Jones.

Twivo, an add-on for Google’s Chrome browser, consists of 150 lines of code and took Lamere 10 hours to create, she told the magazine. It’s a simple concept—a user “can type in the key words she would like to block, and for how long, and make those tweets disappear,” the magazine said.

The app is still in the very early stages, but Lamere has been contacted by at least one developer, Furious Minds, interested in helping her build it out for commercial release, Mother Jones said.

“We’re always interested in the convergence between TV and social media, and Jen’s hack was awesome, not to mention she did the entire thing herself,” Ashley Swartz, CEO and founder of Furious Minds, was quoted as saying by the magazine.