this post was submitted on 16 Oct 2023
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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NixOS has snapshots built in as well but I've never had to actually use them to recover anything because Nix packages are built in isolation from one another, and their dependencies are declared, so packages can't break each other when installing or upgrading them.
NixOS is also an immutable distro, which prevents accidental bad changes to the system. Tumbleweed is very friendly and stable compared to many other distros out there, but it's still vulnerable to accidental breakage in the same ways most other distros are. I think the cherry on top for the average joe using Nix compared to OpenSUSE, however, is just the fact that the Nixpkgs repository absolutely dwarfs OpenSUSE's.
Luckily, if you prefer to stick with whatever distro you're running already, but want the power of the Nix package manager, you can get the best of both worlds and install just Nix (without NixOS) on any distro.