I once had a robotic cat litter box that cleaned itself. Except once a week it would get clogged and I would have to spend a quality hour disassembling it, scrubbing off the feces embedded on the delicate parts, and reassembling it. Every two weeks when it heated up its artificial litter to dry, it would have missed a small piece of cat shit that when baked, filled my house with an aroma that I would not recommend you even try to imagine.

And of course it needed special, expensive supplies that you had to buy from the manufacturer because the bottles had numbered chips.

I eventually threw the damn thing out and now I just use a manual litter box. Takes 15 seconds a day to clean. It's a chore but it's a small predictable chore.

When I read about NixOS I remember that robot litter box. It seems like it solves a real problem of difficulty X but it brings five brand new problems from a parallel universe you didn't know existed and they're all written in an indecipherable language and have difficulty 10X.