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>
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theArctesian
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modules/core.nix
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310
modules/core.nix
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{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.omarchy;
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in
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{
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options.omarchy = {
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enable = mkEnableOption "Omarchy system configuration";
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user = mkOption {
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type = types.str;
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default = "user";
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description = "Primary user for the system";
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};
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theme = mkOption {
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type = types.enum [ "tokyo-night" "catppuccin" "gruvbox" "nord" "everforest" "rose-pine" "kanagawa" ];
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default = "tokyo-night";
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description = "System theme";
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};
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features = {
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docker = mkEnableOption "Docker container support";
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development = mkEnableOption "Development tools and environments";
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gaming = mkEnableOption "Gaming support (Steam, Wine, etc.)";
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multimedia = mkEnableOption "Multimedia applications";
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};
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};
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config = mkIf cfg.enable {
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# Basic system configuration
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system.autoUpgrade = {
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enable = true;
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flake = "/etc/nixos#omarchy";
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flags = [ "--update-input" "nixpkgs" "--commit-lock-file" ];
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dates = "weekly";
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};
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# Enable documentation
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documentation = {
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enable = true;
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man.enable = true;
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dev.enable = cfg.features.development;
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};
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# Security settings
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security = {
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sudo = {
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enable = true;
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wheelNeedsPassword = true;
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extraRules = [
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{
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groups = [ "wheel" ];
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commands = [
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{
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command = "/run/current-system/sw/bin/nixos-rebuild";
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options = [ "NOPASSWD" ];
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}
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];
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}
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];
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};
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polkit.enable = true;
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};
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# System services
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services = {
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# Enable SSH daemon
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openssh = {
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enable = true;
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settings = {
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PermitRootLogin = "no";
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PasswordAuthentication = false;
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KbdInteractiveAuthentication = false;
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};
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};
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# Enable fstrim for SSD
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fstrim.enable = true;
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# Enable thermald for thermal management
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thermald.enable = true;
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# Enable power management
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power-profiles-daemon.enable = true;
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upower.enable = true;
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# Enable bluetooth
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blueman.enable = true;
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# Enable GVFS for mounting
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gvfs.enable = true;
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# Enable Avahi for network discovery
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avahi = {
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enable = true;
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nssmdns4 = true;
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publish = {
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enable = true;
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addresses = true;
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domain = true;
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userServices = true;
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};
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};
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# Enable flatpak support
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flatpak.enable = true;
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# System monitoring
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smartd = {
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enable = true;
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autodetect = true;
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};
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};
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# Hardware support
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hardware = {
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bluetooth = {
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enable = true;
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powerOnBoot = true;
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};
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# OpenGL support
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opengl = {
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enable = true;
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driSupport = true;
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driSupport32Bit = true;
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extraPackages = with pkgs; [
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intel-media-driver
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vaapiIntel
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vaapiVdpau
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libvdpau-va-gl
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];
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};
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};
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# Docker configuration
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virtualisation = mkIf cfg.features.docker {
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docker = {
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enable = true;
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enableOnBoot = true;
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autoPrune = {
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enable = true;
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dates = "weekly";
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};
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};
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};
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# Development configuration
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programs = mkIf cfg.features.development {
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git = {
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enable = true;
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lfs.enable = true;
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};
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npm.enable = true;
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};
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# Gaming configuration
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programs.steam = mkIf cfg.features.gaming {
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enable = true;
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remotePlay.openFirewall = true;
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dedicatedServer.openFirewall = true;
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};
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# Environment variables
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environment.variables = {
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EDITOR = "nvim";
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VISUAL = "nvim";
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BROWSER = "firefox";
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TERM = "xterm-256color";
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# Development
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CARGO_HOME = "$HOME/.cargo";
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GOPATH = "$HOME/go";
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NPM_CONFIG_PREFIX = "$HOME/.npm";
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# Omarchy specific
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OMARCHY_ROOT = "/etc/nixos";
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OMARCHY_VERSION = "1.0.0";
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};
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# Shell configuration
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programs.bash = {
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interactiveShellInit = ''
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# Omarchy bash initialization
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export PATH="$HOME/.local/bin:$HOME/.cargo/bin:$HOME/go/bin:$HOME/.npm/bin:$PATH"
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# Aliases
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alias ll='eza -la'
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alias ls='eza'
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alias cat='bat'
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alias grep='rg'
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alias find='fd'
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alias vim='nvim'
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alias vi='nvim'
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# Omarchy specific aliases
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alias omarchy-rebuild='sudo nixos-rebuild switch --flake /etc/nixos#omarchy'
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alias omarchy-update='nix flake update --flake /etc/nixos'
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alias omarchy-clean='sudo nix-collect-garbage -d'
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alias omarchy-search='nix search nixpkgs'
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# Functions
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omarchy-theme() {
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local theme=$1
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if [ -z "$theme" ]; then
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echo "Available themes: tokyo-night, catppuccin, gruvbox, nord, everforest, rose-pine, kanagawa"
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return 1
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fi
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echo "Switching to theme: $theme"
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# This would need to update the configuration and rebuild
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sudo sed -i "s/currentTheme = \".*\"/currentTheme = \"$theme\"/" /etc/nixos/configuration.nix
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omarchy-rebuild
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}
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omarchy-help() {
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cat << EOF
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Omarchy Commands:
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================
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omarchy-rebuild - Rebuild system configuration
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omarchy-update - Update flake inputs
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omarchy-clean - Garbage collect nix store
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omarchy-search - Search for packages
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omarchy-theme - Change system theme
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omarchy-help - Show this help message
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Key Bindings (Hyprland):
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=======================
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Super + Return - Open terminal
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Super + B - Open browser
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Super + E - Open file manager
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Super + D - Application launcher
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Super + Q - Close window
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Super + F - Fullscreen
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Super + Space - Toggle floating
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For more information, visit: https://omarchy.org
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EOF
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}
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# Welcome message
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if [ -z "$IN_NIX_SHELL" ]; then
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echo "Welcome to Omarchy! Type 'omarchy-help' for available commands."
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fi
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'';
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promptInit = ''
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# Starship prompt
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if command -v starship &> /dev/null; then
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eval "$(starship init bash)"
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fi
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'';
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};
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# System-wide packages
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environment.systemPackages = with pkgs; [
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# Core utilities
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coreutils
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findutils
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gnugrep
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gnused
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gawk
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# System tools
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htop
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neofetch
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tree
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wget
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curl
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# Text editors
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vim
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nano
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# Development basics
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git
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make
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gcc
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# Nix tools
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nix-prefetch-git
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nixpkgs-fmt
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nil
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# Custom Omarchy scripts
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(writeShellScriptBin "omarchy-info" ''
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#!/usr/bin/env bash
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echo "Omarchy NixOS"
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echo "============="
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echo "Version: ${config.omarchy.version or "1.0.0"}"
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echo "Theme: ${cfg.theme}"
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echo "User: ${cfg.user}"
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echo ""
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echo "Features:"
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echo " Docker: ${if cfg.features.docker then "✓" else "✗"}"
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echo " Development: ${if cfg.features.development then "✓" else "✗"}"
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echo " Gaming: ${if cfg.features.gaming then "✓" else "✗"}"
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echo " Multimedia: ${if cfg.features.multimedia then "✓" else "✗"}"
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echo ""
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echo "System Info:"
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nixos-version
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'')
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];
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};
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}
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