Working nix-darwin config from this Mac

archive-installs.nix

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+{ pkgs, lib, ... }:
+
+let
+  stampDir = "/usr/local/share/nix-pkg-stamps";
+
+  apps = [
+    {
+      name = "removemacai-app";
+      app = "RemoveMacAI.app";
+      url = "https://github.com/omlahore/RemoveMacAI/releases/download/v1.1.4/RemoveMacAI.zip";
+      sha256 = "2063d4dc7e0b41b15cebcd9e1b9807b04615b96e3e23db35cbd1196be3c96bee";
+    }
+  ];
+
+  appScript = a:
+    let
+      src = pkgs.fetchurl { inherit (a) url sha256; };
+    in ''
+      stamp="${stampDir}/${a.name}"
+      want="${src}"
+      if [ "$(cat "$stamp" 2>/dev/null)" != "$want" ]; then
+        echo "installing ${a.name}..."
+        tmp=$(mktemp -d)
+        if /usr/bin/unzip -q "$want" -d "$tmp"; then
+          if [ -d "$tmp/${a.app}" ]; then
+            rm -rf "/Applications/${a.app}"
+            /usr/bin/ditto "$tmp/${a.app}" "/Applications/${a.app}"
+            mkdir -p "${stampDir}"
+            echo "$want" > "$stamp"
+          else
+            echo "${a.name}: ${a.app} not found in zip, skipping"
+          fi
+        else
+          echo "${a.name}: could not unzip, skipping"
+        fi
+        rm -rf "$tmp"
+      fi
+    '';
+in
+{
+  system.activationScripts.postActivation.text =
+    lib.concatStringsSep "\n" (
+      (map appScript apps)
+    );
+}

cli-tools.nix

@@ -0,0 +1,32 @@
+{ pkgs, ... }:
+
+{
+  environment.shellAliases = {
+    yt = "yt-dlp";
+    ll = "ls -la";
+  };
+
+  environment.etc."gitconfig".text = ''
+    [user]
+      name = Brian Nelson
+      email = brian@briannelson.dev
+    [init]
+      defaultBranch = main
+    '';
+
+  environment.etc."yt-dlp.conf".text = ''
+    -o /Users/briannelson/Downloads/yt-dlp/%(title)s.%(ext)s
+    --no-mtime
+    --restrict-filenames
+    --embed-thumbnail
+    --embed-metadata
+    --format "bestvideo[height<=1080]+bestaudio/best[height<=1080]"
+    --merge-output-format mp4
+  '';
+
+  system.activationScripts.postActivation.text = ''
+    if [ -x /opt/homebrew/bin/defaultbrowser ]; then
+      sudo -u briannelson /opt/homebrew/bin/defaultbrowser librewolf || echo "could not set deffault browser, skipping"
+    fi
+  '';
+}

configuration.nix

@@ -0,0 +1,65 @@
+{ pkgs, ... }:
+
+{
+  imports = [
+    ./cli-tools.nix
+    ./mac-settings.nix
+    ./pkg-installs.nix
+    ./archive-installs.nix
+  ];
+  
+  nixpkgs.hostPlatform = "aarch64-darwin";
+
+  nix.settings.experimental-features = "nix-command flakes";
+
+  system.stateVersion = 6;
+  system.primaryUser = "briannelson";
+
+  environment.systemPackages = with pkgs; [
+    exif
+    exiftool
+    ffmpeg
+    flac
+    git
+    helix
+    librewolf
+    tea
+    yt-dlp
+  ];
+
+  homebrew = {
+    enable = true;
+    onActivation = {
+      autoUpdate = true;
+      cleanup = "none";
+    };
+
+    brews = [
+      "bun"
+      "defaultbrowser"
+      "harper"
+      "nicotine-plus"
+      "rust"
+      "ykman"
+    ];
+
+    casks = [
+      "bitwarden"
+      "cap"
+      "discord"
+      "docker-desktop"
+      "harper-desktop"
+      "libreoffice"
+      "nextcloud"
+      "obsidian"
+      "protonvpn"
+      "rustdesk"
+      "signal"
+      "task-manager-tmog"
+      "twingate"
+      "vlc"
+      "vscodium"
+      "firefox"
+    ];
+  };
+}

flake.lock

@@ -0,0 +1,85 @@
+{
+  "nodes": {
+    "brew-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1793000687,
+        "narHash": "sha256-8mCor0DDjNhi+0e+FllfqiMABujBl+/RxYW+wgMpcto=",
+        "owner": "Homebrew",
+        "repo": "brew",
+        "rev": "c6069d2a943b71b0a90d91fc1ac93cb9c1634dcc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Homebrew",
+        "ref": "7.0.11",
+        "repo": "brew",
+        "type": "github"
+      }
+    },
+    "nix-darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1792800221,
+        "narHash": "sha256-53jIZEWNh96irEXhsMZFoNhLJgGSU3nYl1i4wFQHAsU=",
+        "owner": "nix-darwin",
+        "repo": "nix-darwin",
+        "rev": "d31953cf55f9027a56e9be938daf5db8c5655663",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-darwin",
+        "ref": "nix-darwin-26.05",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
+    "nix-homebrew": {
+      "inputs": {
+        "brew-src": "brew-src"
+      },
+      "locked": {
+        "lastModified": 1793543863,
+        "narHash": "sha256-oDYLVD8KGT/M57c8HziYSSj0le4wCyA+jZ7+/qUS91M=",
+        "owner": "zhaofengli",
+        "repo": "nix-homebrew",
+        "rev": "52bc87da3f30c2261a6d1cfef3c892097b53daeb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "zhaofengli",
+        "repo": "nix-homebrew",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1793976852,
+        "narHash": "sha256-bWDN3JZcE9ovYoaD0/6WYbMtXYpUu0vd5onpK0pc/SE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "57f1c8965649ce5bcac5118a0d2e41f1fbdc56e5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-26.05-darwin",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nix-darwin": "nix-darwin",
+        "nix-homebrew": "nix-homebrew",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,26 @@
+{
+  description = "Brian's macOS nix-darwin configuration";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-26.05-darwin";
+    nix-darwin.url = "github:nix-darwin/nix-darwin/nix-darwin-26.05";
+    nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
+    nix-homebrew.url = "github:zhaofengli/nix-homebrew";
+  };
+
+  outputs = inputs@{ self, nix-darwin, nixpkgs, nix-homebrew, ... }: {
+    darwinConfigurations."Brians-MacBook-Air" = nix-darwin.lib.darwinSystem {
+      modules = [ 
+        ./configuration.nix
+        nix-homebrew.darwinModules.nix-homebrew
+        {
+          nix-homebrew = {
+            enable = true;
+            enableRosetta = true;
+            user = "briannelson";
+          };
+        }
+      ];
+    };
+  };
+}

mac-settings.nix

@@ -0,0 +1,64 @@
+{ ... }:
+
+{
+  system.defaults = {
+    NSGlobalDomain = {
+      AppleEnableSwipeNavigateWithScrolls = true;
+      AppleIconAppearanceTheme = "RegularDark";
+      AppleInterfaceStyle = "Dark";
+      NSDocumentSaveNewDocumentsToCloud = false;
+      NSNavPanelExpandedStateForSaveMode = true;
+      NSNavPanelExpandedStateForSaveMode2 = true;
+      "com.apple.trackpad.enableSecondaryClick" = true;
+    };
+
+    controlcenter = {
+      AirDrop = true;
+      Bluetooth = true; 
+      Sound = true;
+    };
+
+    dock = {
+      autohide = true;
+      largesize = 40;
+      magnification = true;
+      mineffect = "scale";
+      minimize-to-application = true;
+      # This is all an example of how to set the apps in the Dock. 
+      # The key is to remember to update this before rebuilding.
+      # I may move this item to another file to keep things clean.
+      # persistent-apps = [
+      #   {
+      #     app = "/Applications/Safari.app";
+      #   }
+      #   {
+      #     spacer = {
+      #       small = true;
+      #     };
+      #   }
+      #   {
+      #     folder = "/System/Applications/Utilities";
+      #   }
+      #   {
+      #     file = "/User/example/Downloads/test.csv";
+      #   }
+      # ]
+      wvous-br-corner = 11; # Launchpad or Apps
+      wvous-tl-corner = 13; # lock screen
+    };
+
+    finder = {
+      AppleShowAllExtensions = true;
+      AppleShowAllFiles = true;
+      FXPreferredViewStyle = "clmv";
+      ShowPathbar = true;
+    };
+
+    magicmouse.MouseButtonMode = "TwoButton";
+
+    trackpad = {
+      TrackpadPinch = true;
+      TrackpadRightClick = true;
+    };
+  };
+}

pkg-installs.nix

@@ -0,0 +1,33 @@
+{ pkgs, lib, ... }:
+
+let
+  # Add one entry per program you want to install from a .pkg file
+  pkgInstalls = [
+    {
+      name = "cupsadmin";
+      url = "https://github.com/kfattic/cupsadmin/releases/download/v1.4.1/cupsadmin-1.4.1.pkg";
+      hash = "sha256-DyIyDYSjAlcU7ivyfldMapIZw5nczEBXfnLicnK6k7Y=";
+    }
+  ];
+
+  installScript = p:
+    let
+      src = pkgs.fetchurl { inherit (p) url hash; };
+    in ''
+      stamp="/usr/local/share/nix-pkg-stamps/${p.name}"
+      want="${src}"
+      if [ "$(cat "$stamp" 2>/dev/null)" != "$want" ]; then
+        echo "installing ${p.name}..."
+        if /usr/sbin/installer -pkg "$want" -target /; then
+          mkdir -p /usr/local/share/nix-pkg-stamps
+          echo "$want" > "$stamp"
+        else
+          echo "${p.name} install failed, skipping"
+        fi
+      fi
+    '';
+in
+{
+  system.activationScripts.postActivation.text =
+    lib.concatMapStringsSep "\n" installScript pkgInstalls;
+}