I've thought about building a dead man's switch product before, but I realized the immense commitment that such a product entails. It must continue to function

I've thought about building a dead man's switch product before, but I realized the immense commitment that such a product entails. It must continue to function for a very long time, and if it fails to function, very important messages would be lost. So, I hope you're in this for the long haul.