I executed the installation command too early, before I read enough. So I didn’t note the Box ID. I couldn’t find any way to get it. I searched, but found nothing useful for my situation (everything says to get it from the dashboard, but I hadn’t entered it).
Then I tried to uninstall Adam:ONE (assuming I’d get another ID), but it asked for a “y or n” confirmation and I couldn’t find any way to enter it. I allowed popups, that didn’t work. Tried another browser, didn’t work either.