Version 1.12 is the latest version. Version 1.9.0 is a much older version.
This is a minor confusion.
The big confusion is that this binding is an OH 1.x version binding. There are no Things in OH 1.x version bindings. That is one of the biggest differences between OH 1.x and OH 2.x. OH 1.x bindings do not support Things and therefore do not support automatic discovery.
I’m surprised you were able to do as much with this binding as you already have in PaperUI. PaperUI only really supports OH 2 bindings.
To use this binding, you will need to create a .items file and manually define Items as documented here.
There are a few OH 1.x bindings that support configuration through PaperUI. Nest 1.x is one example. I just assumed that this was one of those bindings since OP mentioned that he configured the binding already. Is that wrong?