Help Needed: Best Approach for Automating Window Blinds with openHAB?

As an alternative to the voice control method above, you can consider the Matter binding. Instead of using the Google/Amazon skills and the cloud connector, you expose the Items you want to control through the Matter bridge in the binding. Then Google and Amazon Alexa Matter controllers can access your devices via voice.

This is in beta, so expect issues and a learning curve. You’ll definitely hit some issues. But this is probably the better way to go in the long term as Matter is gathering momentum for home automation. It may or may not be worthwhile for you in the short term.