I'm a Linux power user, and this distro made me rethink what an operating system can be

• NixOS is an open-source operating system that is available to install and use for free.
• It offers several desktop environments to choose from, is as rock-solid as any OS on the market, and performs quite well.
• However, there's a fairly steep learning curve for installing non-free software.

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Before we get into this review, I want to offer some information for new Linux users. If you're uncomfortable using the command line or diving down rabbit holes to figure out how to do something that should "just work out of the box," then NixOS is probably not for you. 

Also: This Linux distro has one of the smartest security features I've seen (and I've tested dozens)

However, that's not to say someone with minimal familiarity with the command line would fail with this distribution. For example ...