A few months ago, I was able to give you the first details about the Violet SmartSwitch. In the meantime, the project has progressed further and on the website of the British manufacturer, pre-orders for an EU version (round switch boxes) of the Violet SmartSwitch can already be placed. Unfortunately, the whole thing is not quite cheap, but in return you get a rather unique control option.
Especially with the Nest Protect smoke detector, I always found the interaction with Philips Hue lamps particularly exciting, even if the emergency hopefully never occurs: as soon as smoke and a possible danger is detected, all Hue lamps throughout the house should switch on. A function which, thanks to Works with Nest, could be implemented without any major problems.