Good morning, In April, I launched Vetkuro, an application I had been working on for a few years (3+) after hours.It is a mobile app and web analyzer for track-day drivers - the idea is to help drivers record their sessions, verify lap times, compare laps and sectors, and understand where they are gaining or losing time using GPS, OBD II, video and other telemetry sources.Last week, 11 people used Vetkuro at Słomczyn, a track near Warsaw, Poland, and recorded more than 40 sessions. I later learned that they had downloaded the app through word of mouth.Professionally, I’m a software developer with 15+ years of experience, although in recent years I’ve become more of a manager than a full-time developer. Motorsport is my passion. I go to the track several times a year, and, as often happens with side projects, I started building Vetkuro for myself, partly out of curiosity, partly because I wanted to improve, and partly because I wanted to build something in a domain I care about.The app is intended for drivers of cars, motorcycles, go-karts and similar vehicles who want to check their results, improve their driving, or simply compete with others.The product is still early and my backlog is still substantial. It cost me a lot mentally to release it in a state that was not as polished as I wanted. But after three years of working on it after hours, keeping it in a drawer any longer felt worse than releasing something imperfect.I’m open to any feedback/questions (especially from people who go to the track) product, technical, UX, positioning, or criticism.regards, Pawel