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Got a spare PC? How I turned mine into an open-source smart home hub for free

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Jack Wallen/ZDNET

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ZDNET's key takeaways

Home Assistant OS is an open-source controller.

Control as many smart devices as you need.

The OS is free and can be installed on a spare PC.

Smart homes make sense. The devices that bring a certain level of automation to your home are exciting, and they can also lower your energy bill and help make your abode a bit more secure.

But just how smart is your home? Do you have devices all over the place that you control with your phone or various hubs? Lights, cameras, action? Maybe you've considered purchasing one of the several smart hubs, such as the Amazon Echo Smart Hub, the Google Nest Hub, or the Apple Home App.

Also: How I cut my power bill with IFTTT automation - in 4 simple steps

What if I told you there was an operating system that could serve as a control center for all of those smart devices? Even better, what if the OS could auto-discover those smart devices on your network?

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