If you want to reduce your home energy consumption, are looking to move to more ecological heating, or just want to know what's going on in your house, the first step is getting some data. Smart thermometers and smart power sockets are pretty cheap these days, but then what? There are several commercial cloud solutions out there, but we saw from last year's talk by Steve Loughran how bad they can be. We have several good Open Source tools for Home Automation, but they can be a bit much if you just want to capture some simple data. Luckily, there's not much difference between monitoring the power consumption of a rack and of a house. There's little change between graphing the temperature of a CPU and a room. The observability tools you're (hopefully!) already using in the DevOps world to monitor your systems can also help your home. Join us to learn about the cheap hardware you need to capture the data, and how to feed it into standard observability tools. There will be code snippets. And of course, there will be graphs!