In 2005 I took over a complete violin class as violin teacher at the music school of Emslandes e.V. Initially, I tried to do the lesson preparation and all other administrative and planning tasks with the usual tools of various Office programs. I had to realize how hard this way was in many everyday situations. Since I had been studying the basics of application programming for a while, it was a good idea to program a special solution for my professional life. That's how the beginnings of Qupil came about. In the meantime, this has developed into an extensive tool that has already saved me many hours of (typing) work and is an essential part of my daily teaching routine.