It sounds like an episode of “Silicon Valley,” the HBO show that skewers computer programmers and their sometimes silly ideas.

A 24-year-old moves to San Francisco for a tech job, rents a room in a “hacker house” on Sixth Street, finds way too much poop on the sidewalk outside for his liking, and creates an app to report it. And, in the cherry on top of this smelly sundae, he names his creation Snapcrap.

Yes, the whole point of Sean Miller’s aptly named app is to snap a photo of crap and report it to the city for cleanup. In some cities, people whip out smartphones for selfies in front of gorgeous museums or stunning vistas. Here, we whip out our smartphones for poop pics.

It’s kind of funny on the surface, but in one of the wealthiest cities in the world, the fact that homeless people are relieving themselves on sidewalks, between parked cars and in planters because there are so few public toilets, is actually very serious.