I might release it some day. Right now, the code is not release-worthy. I do know my way around it since I wrote it and so, it's really pretty easy for me to add new maps if you send the names of the cities without much manual work. Thanks for giving me the idea of automating this further though - may be users can look up cities and the backend can generate a map for them, publish it and notify them when it is available. However, since I get requests for new maps very infrequently, I am too lazy to do it right away.