Thank you for the feedback! Custom quizzes would be really nice to have and they are probably quite easy to add. In fact, I already have the tools to generate c

Thank you for the feedback! Custom quizzes would be really nice to have and they are probably quite easy to add. In fact, I already have the tools to generate custom city collections: https://github.com/sharkdp/quizzity/tree/master/geodata https://github.com/sharkdp/quizzity/tree/master/geodata (see cities-EU.json, for example). Contributions are always welcome, of course.