Living with the ghost of a smart home’s past

My brother and his wife got a house. He mentioned it appeared to have a lot of tech installed by the last owner. I told him that was an exciting mystery for the two of us. Whatever speakers and weird smart home junk had been set up, we’d be able to repurpose. But then he moved in. Slowly, over weeks of tech support calls and hours digging through shockingly deep coat closets, we learned that while the old owner was gone, his digital ghost remained. It was lurking in the home’s lights and…