Personal macOS configuration using Nix flakes, nix-darwin, and home-manager.

This repository contains my personal system and user configurations, built on top of core.nix for reusable base configurations.

This follows a layered configuration pattern:

1. Base layer: core.nix - Reusable tool configurations
2. Personal layer: modules/ - Personal overrides and additions
3. Host layer: hosts/meduseld/ - Machine-specific settings

dotfiles/
├── flake.nix                          # Flake configuration
├── flake.lock                         # Locked input versions
├── nixpkgs.nix                        # nixpkgs configuration
├── modules/
│   ├── nix-darwin/default.nix         # Personal system settings
│   └── home-manager/default.nix       # Personal user settings
└── hosts/
    └── meduseld/                      # Host-specific config
        ├── nix-darwin/default.nix     # System config for this host
        └── home-manager/default.nix   # User config for this host

1. Install Nix with flakes enabled
2. Install nix-darwin
3. Install home-manager

Apply system-level changes:

sudo darwin-rebuild switch --flake .

Apply user environment changes:

home-manager switch --flake .

Enter a shell with darwin-rebuild and home-manager available:

nix develop

Base configurations for:

• Git, Neovim, Zsh, Tmux
• Direnv, Starship, GitHub CLI
• System fonts and preferences
• GPG agent setup

Personal customizations:

• Git identity and signing configuration
• Additional packages (yubikey tools, media tools, etc.)
• Environment variables
• Shell customizations (chruby, cargo, rancher desktop)

Machine-specific settings:

• System state version
• Architecture (aarch64-darwin)
• GUI applications (homebrew casks)
• System packages

nix flake update

nix flake update core

nix flake check

home-manager news --flake .

Edit hosts/meduseld/nix-darwin/default.nix:

environment.systemPackages = with pkgs; [
  neovim
  git
  your-new-package  # Add here
];

Edit modules/home-manager/default.nix:

home.packages = with pkgs; [
  cmake
  your-new-tool  # Add here
];

Edit modules/nix-darwin/default.nix:

homebrew.casks = [
  "ghostty"
  "your-app"  # Add here
];

Based on the modular configuration pattern from Jitsusama's dotfiles.