Add Nix support

README.md

@@ -2,37 +2,46 @@
 
 My macOS configuration files.
 
+> [!NOTE]  
+> Nix support is in beta. If I'm happy with Nix after a while, I'll migrate everything else to Nix, and installation instructions will become simpler.
+
 ## Setting up a new MacOS machine 🚀
 
-1. Install Homebrew:
+1. Install [Nix](https://nix.dev/install-nix):
+
+  ```sh
+  curl -L https://nixos.org/nix/install | sh
+  ```
 
-```sh
-/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
-```
+2. Clone the repo
 
-1. Install requirements:
+  ```sh
+  git clone --recurse-submodules https://github.com/legomb/dotfiles.git
+  ```
 
-```sh
-brew install git stow go-task
-```
+3. Switch to the nix flake:
 
-3. Clone the repo.
+  ```sh
+  cd config/nix/.config/nix-darwin
+  nix run nix-darwin --extra-experimental-features "nix-command flakes" -- switch --flake .#macbook
+  ```
 
+  This will configure macOS settings and install basic dependencies (go-task, etc.)
 
-4. Initialize submodules:
+4. Install Homebrew:
 
-```sh
-task git:submodules:update
-```
+  ```sh
+  task brew:install
+  ```
 
 5. Stow dotfiles:
 
-```sh
-task stow:stow
-```
+  ```sh
+  task stow:stow
+  ```
 
-6. Install everything:
+6. Install everything using brew:
 
-```sh
-task brew:bundle:install
-```
+  ```sh
+  task brew:bundle:install
+  ```

config/brew/Brewfile

@@ -105,6 +105,7 @@ cask "alt-tab"
 # cask "font-lilex-nerd-font"
 # cask "font-martian-mono-nerd-font"
 cask "font-meslo-lg-nerd-font"
+cask "font-meslo-for-powerlevel10k"
 # cask "font-monaspace-nerd-font"
 # cask "font-monocraft-nerd-font"
 # cask "font-monofur-nerd-font"

config/nix/.config/nix-darwin/.gitignore

@@ -0,0 +1 @@
+result/

config/nix/.config/nix-darwin/configuration.nix

@@ -0,0 +1,53 @@
+{ self, pkgs, ... }:
+{
+
+  # The default Nix build user group ID was changed from 30000 to 350. You can set the configured group ID to match the actual value with `ids.gids.nixbld = 30000;`
+  # We do not recommend trying to change the group ID with macOS user management tools without a complete uninstallation and reinstallation of Nix.
+  ids.gids.nixbld = 30000;
+
+  nixpkgs.config.allowUnfree = true;
+  # The platform the configuration will be used on.
+  nixpkgs.hostPlatform = "aarch64-darwin";
+
+  # List packages installed in system profile. To search by name, run:
+  # $ nix-env -qaP | grep wget
+  environment.systemPackages = with pkgs; [
+    coreutils
+    git
+    go-task
+    neovim
+    stow
+    nixfmt-rfc-style
+  ];
+
+  nix.settings = {
+    keep-outputs = true;
+    keep-derivations = true;
+
+    # Necessary for using flakes on this system.
+    experimental-features = "nix-command flakes";
+  };
+
+  # 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 = 5;
+
+  security.pam.services.sudo_local.touchIdAuth = true;
+
+  system.defaults = {
+    dock.autohide = true;
+    finder.FXPreferredViewStyle = "clmv";
+    finder.AppleShowAllExtensions = true;
+    NSGlobalDomain.AppleInterfaceStyle = "Dark";
+  };
+
+  # Garbage collection
+  nix.gc = {
+    automatic = true;
+    options = "--delete-generations +5";
+  };
+  nix.optimise.automatic = true;
+}

config/nix/.config/nix-darwin/flake.nix

@@ -0,0 +1,23 @@
+{
+  description = "Custom nix-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,
+    }:
+    {
+      # Build darwin flake using:
+      # $ darwin-rebuild build --flake .#macbook
+      darwinConfigurations."macbook" = nix-darwin.lib.darwinSystem {
+        modules = [ ./configuration.nix ];
+      };
+    };
+}

taskfile.yml

@@ -3,6 +3,7 @@ version: '3'
 env:
   CONFIG_PATH: '{{.PWD}}/config'
   BREWFILE_PATH: '{{.CONFIG_PATH}}/brew/Brewfile'
+  NIX_DARWIN_FLAKE_PATH: '{{.CONFIG_PATH}}/nix/.config/nix-darwin'
 
 dotenv: ['.env', '{{.ENV}}/.env.', '{{.HOME}}/.env']
 
@@ -64,6 +65,7 @@ tasks:
           - git
           - alacritty
           - ghostty
+          - nix
         cmd: stow {{.CLI_ARGS}} --dir={{.CONFIG_PATH}} --target=$HOME {{ .ITEM }}
 
   stow:simulate:
@@ -83,3 +85,45 @@ tasks:
     cmds:
       - git submodule update --init --recursive
       - task: zsh:create-powerlevel10k-symlink
+
+  nix:install:
+    desc: Installs Nix
+    cmds:
+      - curl -L https://nixos.org/nix/install | sh
+
+  nix:flake:init:nix-darwin:
+    desc: Initializes nix-darwin flake, as per https://youtu.be/Z8BL8mdzWHI?si=azkz7EwYHTEUBCz3
+    dir: '{{.NIX_DARWIN_FLAKE_PATH}}'
+    cmds:
+      - nix flake init -t nix-darwin --extra-experimental-features "nix-command flakes"
+      - sed -i '' "s/simple/$(scutil --get LocalHostName)/" flake.nix
+
+  nix:flake:switch:nix-darwin:
+    desc: Switches to the MacOS flake
+    dir: '{{.NIX_DARWIN_FLAKE_PATH}}'
+    cmds:
+      - nix run nix-darwin --extra-experimental-features "nix-command flakes" -- switch --flake .#macbook
+
+  nix:flake:rebuild:nix-darwin:
+    desc: Rebuilds the MacOS flake
+    dir: '{{.NIX_DARWIN_FLAKE_PATH}}'
+    cmds:
+      - darwin-rebuild switch --flake .#macbook
+
+  nix:flake:rebuild:nix-darwin:dry-run:
+    desc: Rebuilds the MacOS flake
+    dir: '{{.NIX_DARWIN_FLAKE_PATH}}'
+    cmds:
+      - darwin-rebuild switch --flake .#macbook --dry-run
+
+  nix:flake:update:nix-darwin:
+    desc: Updates the MacOS flake lock file
+    dir: '{{.NIX_DARWIN_FLAKE_PATH}}'
+    cmds: 
+      - nix flake update
+
+  nix:flake:format:
+    desc: Formats MacOS flake file
+    dir: '{{.NIX_DARWIN_FLAKE_PATH}}'
+    cmds: 
+      - nixfmt flake.nix