Hi. The legacy works with nest integration currently doesn’t have a maintainer. I maintain the nest integration overall and have been trying to keep it working. The code has few automated tests though i tried to add some, and I don’t even have a legacy works with nest account so I can’t really even test it out if i wanted to. The SDM API likely won’t add all the missing features of the works with nest api, and that really isn’t a factor in the decision.
Edit: The complexity starts to get really high managing the configuration for legacy works with nest as we extend nest with new features especially things like moving away from yaml, etc to make nest onboarding easier.
I would definitely recommend someone in the community move the code to a custom component and continue maintaining it. If someone is interested in doing this i’m happy to help them, though assume my help won’t be needed.