I used a temperature controller to regulate temps for a freezer I turned into a kegerator. It was a Johnson Controls model, iirc. Not sure what similar options would be outside the US though, if that’s a thing for you.
Maybe check out a local home brewing shop? Looks like on average, prices range anywhere from $50-$500US depending on how fancy you want to get.
I actually use it to keep my kindergartner out of the settings app. It just sends them to the calculator app instead. I may have about six months left before they figure out how to get around it.
When I used a MagSafe mount in my car, I had a shortcut triggered by connecting to the car Bluetooth to automatically turn off the screen rotation lock so I could have my screen in landscape automatically. When the car was turned off, it would revert to portrait and screen rotation locked.
I had hoped to get it to work with our chamberlain garage door openers, but Chamberlain doesn’t play nice with HomeKit anymore.
When the Berlin Wall came down