I like the way you handle error translations. My own preference for Errors, though, is to define them all as enums, so we can kind of strictly type all possible errors a library / code part can throw. When I’m using them, sometimes I have a try with multiple different catches – one for each application part. The cool part about that is that you can add another error and get compilation errors if you forget to handle this type of error.

Nice work! It is also possible to use it the other way around?

Cheers!