The document outlines the development of an app called Tearn Up created by Princeton students to address the lack of opportunities at Princeton for learning practical skills from other students. It discusses initial inspiration and challenges faced such as time constraints and lack of incentives. An alpha prototype was successful but faced issues with scheduling classes and ensuring follow through. Further updates included expanding connectivity and credibility through a teaching community with quality control. Feedback was positive about casual skill sharing and looking for ways to recruit more users and teachers through student groups and events. The goal is to continue growing the program and find successors to run it.