and my SaaS solves a very specific problem. It's like nothing has ever been done before. It's called calculator (dot) com, and it has a 3x3 grid of numbers, 0, mathematical operators, and an equals button. It allows users to calculate a series of mathematical operations in a fast manner. And I made $800K MRR just yesterday, and I'm also only 20 years old. The whole thing was vibe-coded with the free tier of GPT. I coded it overnight. submitted by /u/sultan_papagani ...