@Georg_S - is Nuki actively working on this (e.g. “together” with ABB / Busch Jäger) ?
The have tons of offerings
https://www.busch-jaeger.de/fuer-profis/fachinformationen/fuer-entwickler
An enablement of the Welcome “classic” 2-wire technology with your Opener I would love to see as many of us.
You could cooperate, you could also integrate the WelcomeIP portal into Nuki Opener to use the nuki app and maybe the Busch Jäger Welcome app to close the gap from Lobby Door and Apartment Door
But anyhow - when is opener with Busch Jäger “leaving” beta?