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221
flake.nix
221
flake.nix
@@ -1,11 +1,17 @@
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{
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description = "Example Darwin system flake";
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description = "Example multi-host, multi-user Darwin system flake with hostVars/userVars, using let-bindings and strict commas";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
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nix-darwin.url = "github:LnL7/nix-darwin";
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nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
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home-manager = {
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url = "github:nix-community/home-manager";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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nix-homebrew.url = "github:zhaofengli-wip/nix-homebrew";
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homebrew-core = {
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url = "github:homebrew/homebrew-core";
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@@ -19,111 +25,140 @@
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url = "github:homebrew/homebrew-bundle";
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flake = false;
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};
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home-manager = {
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url = "github:nix-community/home-manager";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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};
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outputs = inputs@{ self, nix-darwin, nix-homebrew, home-manager, ... }:
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outputs = inputs@{ self, nix-darwin, home-manager, ... }:
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let
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username = "stephen";
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hostname = "swaphb-mba";
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# Minimal Darwin system config (minus environment.systemPackages/services)
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configuration = { pkgs, lib, inputs, ... }: {
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# Some general Darwin/Nix configuration
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nix.extraOptions = ''
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experimental-features = nix-command flakes
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'';
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# This can stay here or move to modules/darwin/services.nix
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# services.nix-daemon.enable = true;
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# Enable the nix-darwin module system.
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nix.package = pkgs.nix;
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# Necessary for using flakes on this system.
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nix.settings.experimental-features = "nix-command flakes";
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# zsh, fish, etc.
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programs.zsh.enable = true;
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programs.bash.interactiveShellInit = ''
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source /home/${username}/.config/op/plugins.sh
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'';
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system.configurationRevision = self.rev or self.dirtyRev or null;
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system.defaults = {
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# ...
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###################################
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# 1. Host variables
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###################################
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hostVars = {
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host1 = {
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hostname = "swaphb-mba";
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arch = "aarch64-darwin";
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};
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system.stateVersion = 4;
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nixpkgs.hostPlatform = "aarch64-darwin";
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nixpkgs.config = {
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allowUnfree = true;
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allowBroken = true;
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host2 = {
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hostname = "example";
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arch = "aarch64-darwin";
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};
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};
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# Minimal home-manager config (minus dotfiles)
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homeconfig = { pkgs, lib, ... }: {
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home.stateVersion = "24.05";
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programs.home-manager.enable = true;
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home.packages = with pkgs; [ ];
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home.sessionVariables = {
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EDITOR = "nano";
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###################################
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# 2. User variables
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###################################
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userVars = {
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userA = {
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username = "stephen";
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homeDirectory = "/Users/stephen";
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shell = "zsh";
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};
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userB = {
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username = "example";
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homeDirectory = "/Users/example";
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shell = "fish";
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};
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home.homeDirectory = lib.mkForce "/Users/${username}";
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};
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###################################
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# 3. Base Darwin config function
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###################################
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baseDarwinConfig = hostKey:
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{ config, pkgs, ... }:
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{
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nixpkgs.hostPlatform = hostVars.${hostKey}.arch;
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nix.extraOptions = ''
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experimental-features = nix-command flakes
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'';
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nix.package = pkgs.nix;
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nix.settings.experimental-features = "nix-command flakes";
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system.configurationRevision = self.rev or self.dirtyRev or null;
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nixpkgs.config.allowUnfree = true;
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nixpkgs.config.allowBroken = true;
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};
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in
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{
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darwinConfigurations."${hostname}" = nix-darwin.lib.darwinSystem {
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modules =
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[
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# Main Darwin config
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configuration
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# The official nix-homebrew module from your flake inputs
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nix-homebrew.darwinModules.nix-homebrew
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{
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nix-homebrew = {
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enable = true;
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enableRosetta = true;
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user = "${username}";
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taps = {
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"homebrew/homebrew-core" = inputs.homebrew-core;
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"homebrew/homebrew-cask" = inputs.homebrew-cask;
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"homebrew/homebrew-bundle" = inputs.homebrew-bundle;
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};
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autoMigrate = true;
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mutableTaps = false;
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###################################
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# 4. Host 1: swaphb-mba
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###################################
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darwinConfigurations."${hostVars.host1.hostname}" = let
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host1Base = baseDarwinConfig "host1";
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in
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nix-darwin.lib.darwinSystem {
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modules = [
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host1Base,
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./modules/darwin/homebrew.nix,
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./modules/darwin/services.nix,
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./modules/darwin/nixpackages.nix,
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inputs.nix-homebrew.darwinModules.nix-homebrew,
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{
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nix-homebrew = {
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enable = true;
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enableRosetta = true;
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user = userVars.userA.username;
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taps = {
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"homebrew/homebrew-core" = inputs.homebrew-core;
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"homebrew/homebrew-cask" = inputs.homebrew-cask;
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"homebrew/homebrew-bundle" = inputs.homebrew-bundle;
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};
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}
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autoMigrate = true;
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mutableTaps = false;
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};
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},
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home-manager.darwinModules.home-manager {
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home-manager.useGlobalPkgs = true;
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home-manager.useUserPackages = true;
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home-manager.verbose = true;
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# Our own modules for Darwin-level configs
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./modules/darwin/homebrew.nix
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./modules/darwin/nixpackages.nix
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./modules/darwin/services.nix
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# Home Manager
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home-manager.darwinModules.home-manager
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{
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home-manager.useGlobalPkgs = true;
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home-manager.useUserPackages = true;
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home-manager.verbose = true;
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home-manager.users.${username} = {
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imports = [
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homeconfig
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./modules/home/dotfiles.nix
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];
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};
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}
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];
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home-manager.users.${userVars.userA.username} = {
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home.homeDirectory = userVars.userA.homeDirectory;
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programs.zsh.enable = (userVars.userA.shell == "zsh");
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programs.fish.enable = (userVars.userA.shell == "fish");
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imports = [
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./modules/home/${userVars.userA.username}/dotfiles.nix
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];
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};
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}
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];
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};
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darwinPackages = self.darwinConfigurations."${hostname}".pkgs;
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};
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###################################
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# 5. Host 2: example
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###################################
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darwinConfigurations."${hostVars.host2.hostname}" = let
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host2Base = baseDarwinConfig "host2";
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in
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nix-darwin.lib.darwinSystem {
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modules = [
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host2Base,
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./modules/darwin/homebrew.nix,
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./modules/darwin/services.nix,
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./modules/darwin/nixpackages.nix,
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home-manager.darwinModules.home-manager {
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home-manager.useGlobalPkgs = true;
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home-manager.useUserPackages = true;
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home-manager.verbose = true;
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home-manager.users.${userVars.userB.username} = {
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home.homeDirectory = userVars.userB.homeDirectory;
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programs.zsh.enable = (userVars.userB.shell == "zsh");
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programs.fish.enable = (userVars.userB.shell == "fish");
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imports = [
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./modules/home/${userVars.userB.username}/dotfiles.nix
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];
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};
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}
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];
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};
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###################################
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# 6. (Optional) Expose packages
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###################################
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darwinPackages = {
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"${hostVars.host1.hostname}" = self.darwinConfigurations."${hostVars.host1.hostname}".pkgs;
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"${hostVars.host2.hostname}" = self.darwinConfigurations."${hostVars.host2.hostname}".pkgs;
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};
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}
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}
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