I looked at these devices a while back, and decided that they are a security risk that I can't accept. In a way, I am glad to have been proven right, but that d

I looked at these devices a while back, and decided that they are a security risk that I can't accept. In a way, I am glad to have been proven right, but that doesn't make me happy. I plan to build my own device of this kind for my child, using components I control to a reasonable extent and software that I write and understand. No external services. I find it somewhat sad that entire categories of devices are off-limits because I don't trust the companies (for good reasons): I have similar plans for home lighting and other home automation, because every commercial device I see is a disaster in terms of security, trust, longevity and reliability.