Handoff
A sublease marketplace for students that shows how much you save on every listing.
I co-founded Handoff in my technology entrepreneurship class at USC. Before building anything we surveyed 47 students across four LA campuses. 81% struggled to find someone to take over their lease, and most ended up on Facebook or Craigslist, where you can't tell a real student from a scam.
That set the two rules. Every listing comes from a verified student, and every listing shows exactly how much you save against the original lease, because that number is what makes someone message you.
It has been rebuilt three times, a Lovable prototype, a Next.js version, and now React and Express on my own server, covering 22 LA campuses. Each rebuild came from something the last one couldn't do. The class left me with one line I keep coming back to. Entrepreneurship is something you do rather than something you plan.