• Thank you for your detailed reply.

    I had a look at built-in BLE and I am not sure it is that easy to integrate actuators, especially proprietary BLE profiles, when SIG-defined profiles are not sufficient.
    I will probably have a try with ESPHome BLE relays, it seems that at least connection oriented communication would be possible. Not sure however how to deal with the application level.
    I agree that it would be great at some stage to provide an integration into Home Assistant. As I am playing with it those days, I will try to get my hands on a custom integration and see where it takes me. I will post here progress, if any.

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