Nowadays, software development cannot work without open-source libraries and frameworks. Some of these libraries are born when young private software enthusiasts are developing some code they need regularly for themselves. Then the project is getting bigger and more professional. One example is the LittlevGL library by Gábor Kiss-Vámosi, which makes graphical user interfaces with touch accessible even for 16-bit-Microcontrollers with small RAM (see extra article in this issue). In this interview, Gábor talks about the background, some interesting details and the future of his popular library.