Admin UI
There is a weird behavior on the UI when you are logged as an admin. You need to click on "wifi" or "stop / start" to access the features allowing to admin the Koombook (choose the cards, change the names, change the language etc.). Anf whatever the button you click on, the user is served with the same page.
Wouldn't it be more logical to have just one card called "Parameters" with the classical roue crantée ?