Whenever a topic about something that could potentially destroy humanity comes up (say, climate issues), there is always some comment that makes a reasonable argument of why things are not as bad as they seem.
What you describe are common features available to all customers of Danish banks. Free of charge in any decent bank. You get the “Dankort” (den card) for free. It’s a debit card that’s universally supported in all shops with zero surcharge. It’s trivial and a common service to share accounts with multiple cards in your family.
Vendor locked. Many companies have huge applications bound tightly to the Oracle database. Often the business logic is just stored procedures. That makes it incredibly difficult to migrate and developers will have a hard time convincing management that the cost of migration would be worth it.
For more information on some of the C magic behind this well-written piece of software, check out the authors blog[1]. It should be pretty interesting for any systems programmer.
edit: I actually think this is an interesting topic. I like the way one usually tries to find a theme that fits the actions the program takes. But it could just as well have been called 'deploy' with 'local', 'remote' and 'setup'. Most administrators would instantly know what is going to happen without having a dictionary lying around.
If you really want to make it dead serious rename 'host' to 'terminal' and 'user' to 'passenger'. And stuff like that.