Complete NixOS rewrite: Transform Omarchy from Arch to declarative NixOS

- Replace shell script-based Arch installation with declarative NixOS configuration
- Implement flake-based architecture for reproducible builds
- Add modular system with feature flags (Docker, gaming, development, etc.)
- Create declarative theme system with Tokyo Night and Catppuccin
- Convert utility scripts to Nix packages with proper derivations
- Add comprehensive development environments (Rust, Go, Python, Node.js, C/C++)
- Implement Home Manager integration for user environment management
- Add interactive installer with theme selection and feature configuration
- Update documentation for NixOS-specific workflows and commands
- Provide atomic updates with rollback capability

This maintains all aesthetic and functional benefits of original Omarchy
while gaining NixOS power: reproducibility, version control, and atomic updates.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

boot.sh

@@ -1,39 +1,80 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
-# Set install mode to online since boot.sh is used for curl installations
-export OMARCHY_ONLINE_INSTALL=true
+# Omarchy NixOS Bootstrap Script
+# Downloads and installs Omarchy on a fresh NixOS system
 
-ansi_art='                 ▄▄▄                                                   
- ▄█████▄    ▄███████████▄    ▄███████   ▄███████   ▄███████   ▄█   █▄    ▄█   █▄ 
+set -e
+
+# Colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+show_banner() {
+    echo -e "${BLUE}"
+    cat << 'EOF'
+     ▄▄▄
+ ▄█████▄    ▄███████████▄    ▄███████   ▄███████   ▄███████   ▄█   █▄    ▄█   █▄
 ███   ███  ███   ███   ███  ███   ███  ███   ███  ███   ███  ███   ███  ███   ███
 ███   ███  ███   ███   ███  ███   ███  ███   ███  ███   █▀   ███   ███  ███   ███
 ███   ███  ███   ███   ███ ▄███▄▄▄███ ▄███▄▄▄██▀  ███       ▄███▄▄▄███▄ ███▄▄▄███
 ███   ███  ███   ███   ███ ▀███▀▀▀███ ▀███▀▀▀▀    ███      ▀▀███▀▀▀███  ▀▀▀▀▀▀███
 ███   ███  ███   ███   ███  ███   ███ ██████████  ███   █▄   ███   ███  ▄██   ███
 ███   ███  ███   ███   ███  ███   ███  ███   ███  ███   ███  ███   ███  ███   ███
- ▀█████▀    ▀█   ███   █▀   ███   █▀   ███   ███  ███████▀   ███   █▀    ▀█████▀ 
-                                       ███   █▀                                  '
+ ▀█████▀    ▀█   ███   █▀   ███   █▀   ███   ███  ███████▀   ███   █▀    ▀█████▀
+                                       ███   █▀
 
-clear
-echo -e "\n$ansi_art\n"
+                            NixOS Edition
+                        Bootstrap Installer
+EOF
+    echo -e "${NC}"
+}
 
-sudo pacman -Syu --noconfirm --needed git
+check_nixos() {
+    if [ ! -f /etc/NIXOS ]; then
+        echo -e "${RED}Error: This script must be run on NixOS${NC}"
+        exit 1
+    fi
+}
 
-# Use custom repo if specified, otherwise default to basecamp/omarchy
-OMARCHY_REPO="${OMARCHY_REPO:-basecamp/omarchy}"
+main() {
+    show_banner
 
-echo -e "\nCloning Omarchy from: https://github.com/${OMARCHY_REPO}.git"
-rm -rf ~/.local/share/omarchy/
-git clone "https://github.com/${OMARCHY_REPO}.git" ~/.local/share/omarchy >/dev/null
+    echo -e "${BLUE}Welcome to Omarchy NixOS Bootstrap!${NC}"
+    echo
+    check_nixos
 
-# Use custom branch if instructed, otherwise default to master
-OMARCHY_REF="${OMARCHY_REF:-master}"
-if [[ $OMARCHY_REF != "master" ]]; then
-  echo -e "\e[32mUsing branch: $OMARCHY_REF\e[0m"
-  cd ~/.local/share/omarchy
-  git fetch origin "${OMARCHY_REF}" && git checkout "${OMARCHY_REF}"
-  cd -
-fi
+    # Install git if not present
+    if ! command -v git &> /dev/null; then
+        echo -e "${YELLOW}Installing git...${NC}"
+        nix-shell -p git --run true
+    fi
 
-echo -e "\nInstallation starting..."
-source ~/.local/share/omarchy/install.sh
+    # Use custom repo if specified, otherwise default
+    OMARCHY_REPO="${OMARCHY_REPO:-yourusername/omarchy-nixos}"
+    OMARCHY_REF="${OMARCHY_REF:-main}"
+
+    echo -e "${BLUE}Cloning Omarchy from: https://github.com/${OMARCHY_REPO}.git${NC}"
+
+    # Remove existing directory
+    rm -rf ~/.local/share/omarchy-nixos/
+
+    # Clone repository
+    git clone "https://github.com/${OMARCHY_REPO}.git" ~/.local/share/omarchy-nixos
+
+    # Use custom branch if specified
+    if [[ $OMARCHY_REF != "main" ]]; then
+        echo -e "${GREEN}Using branch: $OMARCHY_REF${NC}"
+        cd ~/.local/share/omarchy-nixos
+        git fetch origin "${OMARCHY_REF}" && git checkout "${OMARCHY_REF}"
+    fi
+
+    cd ~/.local/share/omarchy-nixos
+
+    echo -e "${BLUE}Starting installation...${NC}"
+    ./install.sh
+}
+
+main "$@"