There is already a topic for the Shelly binding: Shelly Binding
I use OH 5.2.0 Release Build, a pro3em and the latest development binding for the meter devices. Check out org.openhab.binding.shelly-5.3.0-SNAPSHOT-fixmeters2.jar
This should be version 5.3.0.202607111255 and i am not sure if this has already been merged.