@github.signals: Penmentor: Your AI Math Mentor Penmentor turns your screen into an interactive chalkboard where an AI marks your handwritten math exactly like a patient teacher. Press a single key while working in a notes app, and the software circles your first mistake, ticks the correct lines, and leaves faint hints rather than giving away the solution. This keeps you in the driver’s seat, forcing you to do the thinking that actually makes the math stick. The project even generates interactive animations so you can visually watch concepts like Riemann sums come to life. Open source: https://github.com/abdullahalhariri/penmentor Spotted on Hacker News: https://news.ycombinator.com/item?id=50167604 #MathTok #StudyTok #MathHelp #CodingAgents