Robert A Heinlein's #SF novel The Moon is a Harsh Mistress is rather good, very good for its time, and one bit occurred to me: the protagonist notes that engineering controls should not be centralised.
I like my house and garden robots and other gadgets, and I don't mind that I can control or monitor them from a distance, but I don't like that that has to go through someone else's central computer and that the details are kept secret.