NixOS-docker VS nix-darwin

Luckily, I did not have to start from scratch as Nix serves their own docker image. I mounted one of my directories and was able to drop into a Nix shell with my configuration file.

There is one: https://github.com/NixOS/docker

But it's more of a Nix docker image than a NixOS one, because half of the things that NixOS gives you don't really make much sense in a docker image (systemd in a container?).

I only know of the nix package manager. https://hub.docker.com/r/nixos/nix

Ability to run buildkite agents inside a kubernetes cluster on preemble instances without need to modify agent’s Dockerfile every time new dependency comes up - was one of major reasons to learn Nix. I’m just using nixos/docker image as a base, install buildkite-agent and some base stuff like bash via nix-env inside Dickerfile, everything else lays in flake.nix of every project my dockerized nixified buildkite agent run.

Just a shout out to nix-darwin[1]. It is nix, so initial setup is a bit involved. But then it truly makes it easy to configure everything in one place including mac defaults, homebrew apps declaratively and mas apps etc.

There is a sample config in nix-darwin repo[2].

[1] https://github.com/LnL7/nix-darwin

[2] https://github.com/LnL7/nix-darwin/blob/master/modules/examp...

https://github.com/LnL7/nix-darwin/tree/master/modules

nix-darwin does similar thing for MacOS

You can use https://github.com/LnL7/nix-darwin

There are many threads around where you can learn more about this (and why it's complicated...), but https://github.com/nix-community/home-manager/issues/1341 and https://github.com/LnL7/nix-darwin/issues/139 seem like two of the most comprehensive.

Nix is pretty usable for both desktops and headless servers. Personally, I even use it on macOS without much trouble.

My system looks like any other install of Ventura, but all of my configuration, ranging from the terminal and VS Code to macOS-specific system preferences and Safari, is done declaratively in Nix [1]. The overwhelming majority of my installed software also comes from Nix packages, with some exceptions for stuff that is not packaged yet (e.g., I have Podman Desktop, the macOS ZFS port, Lulu, yubikey-manager-qt installed through Homebrew -- fortunately nix-darwin [2] also just lets me have an set of brews/casks in my config).

It was been a bit of a nightmare at first since the error messages are kind of horrific, and there can be a lack of good examples/docs on flakes. But I think the weekend worth of time I invested was worth it since I no longer need to rely on hacky shellscripts or remember to manually configure anything.

[1]: <https://github.com/nix-community/home-manager>

[2]: <https://github.com/LnL7/nix-darwin>

Take a look at nix-darwin, this is what I use. It allows you to configure your system similar to NixOS including globally installed programs.

This — I still use mas and brew —-cask through the nix-darwin module, though. It’s not exactly reproducible, but it’s at least closer to reproducible and declarative.