On the Clara 2E and newer readers you don’t even have to interact with the database anymore. You can plug in the reader using USB and edit a config file to enable Sideload mode which will remove the login screen and default home page and instead deposit you straight into the library menu.
Hobby electronics?
Need a small part? Better buy 10 in case you break one and because it’s only marginally more expensive than getting one. Now repeat for every project you do