Having trouble with initial setup.

[BlueFalconHD]

I installed nix (using ). Then, I followed the steps to use nix-darwin:

mkdir -p ~/.config/nix-darwin                                                                                     
cd ~/.config/nix-darwin
nix flake init -t nix-darwin
sed -i '' "s/simple/$(scutil --get LocalHostName)/" flake.nix

Then I ran nix run nix-darwin --experimental-features "flakes nix-command" -- switch --flake ~/nix-darwin-config/, as instructed.

Then, it says I should be able to use the command nix-darwin, but it doesn't work. I am using fish shell, my config is listed below:

#!!!SUPER IMPORTANT!!!#
fish_add_path /bin/
fish_add_path /usr/bin/
fish_add_path /usr/sbin/


set -Ux SHELL /usr/bin/env fish
fish_add_path /opt/homebrew/bin/
fish_add_path /opt/homebrew/sbin/

set fish_function_path $fish_function_path ~/.config/fish/plugin-foreign-env/functions



function paths
    eval "$(/opt/homebrew/bin/brew shellenv)"
    fish_add_path /Users/hayesdombroski/.spicetify
    fish_add_path /Users/hayesdombroski/.local/bin
    fish_add_path /Users/hayesdombroski/go/bin
    fish_add_path /Users/hayesdombroski/.cargo/bin

    # add gnu coreutils
    fish_add_path /opt/homebrew/opt/coreutils/libexec/gnubin/
end

function aliases
    alias a="exa -l --sort modified -mg --git-ignore --icons"
    alias ls="exa -l --sort modified -mg --git-ignore --icons"

    # cd relative up
    # alias .1="savecd ../"
    # alias .2="savecd ../../"
    # alias .3="savecd ../../../"
    # alias .4="savecd ../../../../"
    # alias .5="savecd ../../../../../"
    # alias b="restorecd"

    # better command replacements
    alias rm="rip"
    alias cp="xcp"

end

function funcs
    function ship
        set choice "$(gum choose "  Fix" "  Feat" "  Docs" "  Style" "  Refactor" "ﭧ  Test" "  Chore" "  Revert")"
        set choice "$(string replace -r ".  " "" "$choice")" # remove the emoji and padding
        set choice "$(string lower "$choice")" # make it lowercase

        set title "$(gum input --placeholder "Title...")"
        set scope "$(gum input --placeholder "Scope...")"
        set desc "$(gum write --header "Description" --placeholder "Description..." --show-line-numbers )"

        set finaltitle "$choice\($scope\): $title"

        git add "$PWD" # add all files
        git status
        git commit -m "$finaltitle" -m "$desc"
    end

    function d
        mkdir $argv[1]
        cd $argv[1]
    end

    function f
        touch $argv[1]
        lvim $argv[1]
    end

    function savecd
        set -Ux SAVECD_LAST_DIR "$PWD"
        cd $argv[1]
    end

    function restorecd
        if test -z "$SAVECD_LAST_DIR"
            echo "\SAVECD_LAST_DIR envar is unset"
        else
            cd "$SAVECD_LAST_DIR"
        end
    end

    function weztheme
        switch $argv[1]
            case mocha
                set -Ux WEZTERM_CTP_THEME Mocha
            case macchiato
                set -Ux WEZTERM_CTP_THEME Macchiato
            case frappe
                set -Ux WEZTERM_CTP_THEME Frappe
            case latte
                set -Ux WEZTERM_CTP_THEME Latte
            case "*"
                echo "theme not recognized"
        end
    end

    function cpr
        if test -z "$argv[1]"
            g++ "$PWD/main.cpp" && $PWD/a.out
        else
            g++ "$argv[1]" && $PWD/a.out
        end
    end
end

function init
    starship init fish | source
    zoxide init fish | source
end

function envars
    set fzf_preview_dir_cmd exa --all --color=always --icons
end


paths
envars
aliases
init
funcs

# pnpm
set -gx PNPM_HOME /Users/hayesdombroski/Library/pnpm
set -gx PATH "$PNPM_HOME" $PATH
# pnpm end



# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
if test -f /opt/homebrew/Caskroom/miniconda/base/bin/conda
    eval /opt/homebrew/Caskroom/miniconda/base/bin/conda "shell.fish" hook $argv | source
else
    if test -f "/opt/homebrew/Caskroom/miniconda/base/etc/fish/conf.d/conda.fish"
        . "/opt/homebrew/Caskroom/miniconda/base/etc/fish/conf.d/conda.fish"
    else
        set -x PATH /opt/homebrew/Caskroom/miniconda/base/bin $PATH
    end
end
# <<< conda initialize <<<


# bun
set --export BUN_INSTALL "$HOME/.bun"
set --export PATH $BUN_INSTALL/bin $PATH

I tried fixing the issue myself, here is my Nix config:

{
  description = "Example Darwin system flake";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    nix-darwin.url = "github:LnL7/nix-darwin";
    nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = inputs@{ self, nix-darwin, nixpkgs }:
  let
    configuration = { pkgs, ... }: {
      # List packages installed in system profile. To search by name, run:
      # $ nix-env -qaP | grep wget
      environment.systemPackages =
        [ pkgs.vim pkgs.fish pkgs.neovim ];

      # Auto upgrade nix package and the daemon service.
      services.nix-daemon.enable = true;
      # nix.package = pkgs.nix;

      # Necessary for using flakes on this system.
      nix.settings.experimental-features = "nix-command flakes";

      # Create /etc/zshrc that loads the nix-darwin environment.
      programs.zsh.enable = true;
      programs.fish.enable = true;

      environment.shells = [ pkgs.bashInteractive pkgs.zsh pkgs.fish ]

      # Set Git commit hash for darwin-version.
      system.configurationRevision = self.rev or self.dirtyRev or null;

      # Used for backwards compatibility, please read the changelog before changing.
      # $ darwin-rebuild changelog
      system.stateVersion = 4;

      # The platform the configuration will be used on.
      nixpkgs.hostPlatform = "aarch64-darwin";
    };
  in
  {
    # Build darwin flake using:
    # $ darwin-rebuild build --flake .#simple
    darwinConfigurations."hayes" = nix-darwin.lib.darwinSystem {
      modules = [ configuration ];
    };

    # Expose the package set, including overlays, for convenience.
    darwinPackages = self.darwinConfigurations."hayes".pkgs;
  };
}

I have no idea what I am doing, thanks for the help!

[limoges]

Re-open your shell again after running your commands. Let us know if it works.

[BlueFalconHD]

@limoges It doesn't

[Samasaur1]

After an install, the bare command should be darwin-rebuild, not nix-darwin. If that doesn't work, can you post the exact command you are trying to run and the output you get?

[zkourouma]

running into the same issue here. i can run the nix-darwin command from nix, but no luck on where darwin-rebuild should be defined even after reloading my shell

❯ nix run nix-darwin -- switch --flake ~/.config/nix-darwin
building the system configuration...
user defaults...
setting up user launchd services...
setting up /Applications/Nix Apps...
setting up pam...
applying patches...
setting up /etc...
system defaults...
setting up launchd services...
reloading nix-daemon...
waiting for nix-daemon
waiting for nix-daemon
configuring networking...
setting nvram variables...

edit: more context

there's also no ~/.nix-defexpr/darwin only channels and channels_root and the ~/.nix-profile is a dangling symlink (if that matters)

[zkourouma]

it looks like this is an issue with nix-darwin and the fish shell in particular

this workaround fixed it for me: #122 (comment)