Hello! It would be great if categories and projects could be synchronized between several people to work together on a project. And you definitely need support for the history of changes within the project. Due to the lack of such a function, my wife and I are forced to synchronize through Dropbox, and it is very, very long, you have to wait a few minutes, and it still does not work correctly, the projects fail and confusion occurs. Thank you for your attention, success in the development!