Readit NewsPlaces like that won't buy them if they are stamped.
They could try selling them on Amazon or E-Bay, but that's too much effort for quick cash to get a fix.
We are only craftsmen to ourselves and each other. To anyone else we are factory workers producing widgets to sell. Once we accept this then there is little surprise that the factory owners want us using a tool that makes production faster, cheaper. I imagine that watchmakers were similarly dismayed when the automatic lathe was invented and they saw their craft being automated into mediocrity. Like watchmakers we can still produce crafted machines of elegance for the customers who want them. But most customers are just going to want a quartz.
Its been interesting.
Had some teenagers try to blow it up with fireworks.
Have to constantly remove proselytizing, mostly christian, pamphlets from it.
Had to buy a stamp https://littlefreelibrary.myshopify.com/products/self-inking... so drug addicts don't clear it out sell the books to buy smack.
Other than hat its been mostly self sustaining.
With a few bytes more more you can create an implementation that is a lot easier to understand. Bytes are cheap, developer time isn't.
E.g. what's the point of globally visible singletons except "everything is an object" cargo-culting?
Just put your state in an anonymous namespace in the implementation file.