BlueKey

I have a .Net Core (ver 8.0) multiproject solution which uses a native library on linux (.so).

When I start the project with debugger on, the program exits with code 0 and without any messages when hitting the line which loads the library.
Without the debugger, it runs without issues.

So does somebody know how I can get debugging to work?

U-Prove seems to me to be pretty close to a perfect auth system. It is possible to disclose only specific attributes and every prove is unlinkable (given no unique attribute is disclosed). Also it supports generating an unique, identity-linked ID per domain.

So I wonder why this technology is not used anywhere I know of?

Lets say I'm in a city and want to buy a specific item or a specific category of items.
It would be nice if there is a website which lists all the items (or at least their more granular categories) of all the local shops in my area.

To be clear, I don't mean an onlineshop; I still want to go there physically. Just something like of a catalogue for all shops in a specific area.

I'm entertaining the thought to write my backups onto tape storage. So my questiont to this community is: does someone know where (if any) to get cheap and simple (my requirements are "just writes & reads the data and is usable with a Linux machine") used tape drives?

Thanks for any hints.