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Why aren't more people using NixPKGs?
(lemmy.world)
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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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Nixpkgs: the official nix repository
Nix shell: only creates a venv with extra packages
Nix develop: full environment configuration on top of nix shell, so you can for example set up project specific envars
Besides that, nix can also work for regular userland packages as an:
imperative package manager (same style as apt install)
declarative package manager (you make a list of packages, nix/home-manager ensures they're installed)
The selling point for me is that I can just write a list of packages, and have the bleeding edge versions installed on top of Debian. I can git that list and have all of my packages available on every device, no matter the os or distro.
Won't lie I'm getting sold on this via this discussion
Here's a part of my other comment because the docs are horrible:
It took me days to get to that point simply because you need to trawl through outdated and nixos resources. Those examples + home-manager manual will get you going in 10 minutes.