this post was submitted on 31 Mar 2026
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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 so I can keep my config in git. I have a single nix config for all my machines (desktop, laptop and server) so I can share configuration between them. I use it to configure both my system and my user config, my dotfiles, with home-manager. Even my neovim config is in nix thanks to nixvim.
I don't think I could go back now. It can be a bit of a pain from time to time and the learning curve is steep but it has so many advantages. Being able to rollback between config versions (called generations), having a consistent config between my machines, having it all in version control… The repo have so many packages and when there is a module it's really easy to add a service. Writing new packages (derivations) and modules is also not that hard. It can be as simple as calling nix-init.
Had my main ssd fail on me a few month back and it was very simple to just replay the config and just get everything working as before. I only had to do the partitioning by hand (it can be done by nix but I've not gotten around to it yet). That's why I only backup data and home partitions, not system partitions.
I was messing with the NixOS system config in weird ways and accidentally bricked it a few times, but I just booted into a previous configuration and fixed it. Whereas with Arch you would be fucked and have to pull out a rescue disk.