The usage of a plain UUID as a key was confusing while using the debugger, it wasn't intuitive to know what database/library it was referring to:

Maybe we do something like {databasename}_{uid}? Or just the database name, I don't know if that would work though.

I was thinking about such things as well and tried some things, however

1. A new unsaved database doesn't have a path
2. If it's a shared database it doesn't have a path as well, it has a shared database
3. Saving under a new path/name will change the key, and we lose the reference

However, I now added the prefix bibdatabasecontext to. make it a bit more clear where the uid is related to

How about?

if databasename is empty:
     uid = "bibdatabasecontext_${uid}"
else 
    uid = "${databasename}_${uid}"

Saving under a new path/name will change the key, and we lose the reference

Ah okay I see, I'm fine with the bibdatabasecontext_ prefix for now but we really should consider other options later.