[usrusr]

> How does one limit a free, public resource to only people with homes? A literal smell test?

By offering something that is even more attractive than a library to people who want the roof but not the books.

One might even argue that it is undemocratic when funds for one public service (with a lot of popular support) were reappropriated for another, maybe less popular, one. Imagine (in Lennon's voice) the USAF going rogue to set up an NHS clone with money they were supposed to spend on new jets: laudable in a way yet unquestionably out of line. Not their decision to make.