Fix package conflicts and add ISO configuration

- Fixed nvtop package reference (nvtopPackages.full -> nvtop)
- Fixed display manager conflicts in ISO config
- Fixed SSH settings conflicts with lib.mkForce
- Fixed home-manager username conflicts for ISO
- Added complete ISO build configuration with Wayland-only setup
- Added ISO build documentation and scripts

BUILD_ISO.md

@@ -0,0 +1,382 @@
+# Building OmniXY ISO Image
+
+This guide explains how to build a live ISO image of OmniXY NixOS that can be used for installation or testing.
+
+## Prerequisites
+
+1. **NixOS or Nix with Flakes**: You need a system with Nix installed and flakes enabled
+2. **Sufficient disk space**: Building an ISO requires several GB of space
+3. **Good internet connection**: Initial build will download many packages
+
+## Quick Start
+
+### Method 1: Using the Built-in App (Recommended)
+
+```bash
+# Clone the repository
+git clone https://github.com/TheArctesian/omnixy.git
+cd omnixy
+
+# Build the ISO using the built-in app
+nix run .#build-iso
+```
+
+The built app will:
+- Build the ISO image
+- Show progress and final location
+- Provide instructions for using the ISO
+
+### Method 2: Direct Nix Build
+
+```bash
+# Build the ISO directly
+nix build .#iso
+
+# The ISO will be available as a symlink
+ls -la ./result/iso/
+```
+
+### Method 3: Build Specific Configuration
+
+```bash
+# Build the ISO configuration specifically
+nix build .#nixosConfigurations.omnixy-iso.config.system.build.isoImage
+
+# Find the ISO file
+find ./result -name "*.iso"
+```
+
+## ISO Features
+
+The OmniXY ISO includes:
+
+### Pre-installed Software
+- **Desktop Environment**: Hyprland with full OmniXY theming
+- **Development Tools**: Complete development stack (editors, compilers, etc.)
+- **Multimedia**: Video players, image viewers, audio tools
+- **Productivity**: Browsers, office suite, communication tools
+- **System Tools**: Disk utilities, system monitors, network tools
+
+### Live Session Features
+- **Auto-login**: Boots directly to the desktop as `nixos` user
+- **No password required**: Passwordless sudo for system administration
+- **Network ready**: NetworkManager enabled for easy connection
+- **Installation tools**: Graphical installer (Calamares) included
+- **Theme showcase**: All OmniXY themes available for testing
+
+### Installation Capabilities
+- **Guided installation**: Run `omnixy-installer` for graphical setup
+- **Manual installation**: Full NixOS installation tools available
+- **Hardware support**: Wide hardware compatibility with latest kernel
+
+## ISO Configuration Details
+
+### Size and Performance
+- **Expected size**: 3-5 GB (depending on included packages)
+- **RAM requirements**: Minimum 4GB RAM for live session
+- **Boot methods**: UEFI and BIOS supported
+
+### Included Themes
+All OmniXY themes are included and can be tested:
+- tokyo-night (default)
+- catppuccin
+- gruvbox
+- nord
+- everforest
+- rose-pine
+- kanagawa
+- catppuccin-latte
+- matte-black
+- osaka-jade
+- ristretto
+
+### Customization Options
+
+#### Building with Different Default Theme
+
+Edit `iso.nix` and change the theme import:
+
+```nix
+# Change this line:
+./modules/themes/tokyo-night.nix
+
+# To your preferred theme:
+./modules/themes/gruvbox.nix
+```
+
+#### Excluding Packages
+
+Modify the `omnixy.packages.exclude` section in `iso.nix`:
+
+```nix
+omnixy = {
+  # ... other config
+  packages = {
+    exclude = [ "discord" "spotify" "steam" ]; # Add packages to exclude
+  };
+};
+```
+
+#### Adding Custom Packages
+
+Add packages to the `environment.systemPackages` in `iso.nix`:
+
+```nix
+environment.systemPackages = with pkgs; [
+  # ... existing packages
+  your-custom-package
+];
+```
+
+## Using the ISO
+
+### Creating Bootable Media
+
+#### USB Drive (Linux)
+```bash
+# Replace /dev/sdX with your USB device
+sudo dd if=./result/iso/omnixy-*.iso of=/dev/sdX bs=4M status=progress oflag=sync
+```
+
+#### USB Drive (Windows)
+Use tools like:
+- Rufus
+- Balena Etcher
+- Windows USB/DVD Download Tool
+
+#### DVD
+Use any DVD burning software with the ISO file.
+
+### Testing in Virtual Machine
+
+#### QEMU
+```bash
+# Basic VM test (4GB RAM)
+qemu-system-x86_64 -cdrom ./result/iso/omnixy-*.iso -m 4G -enable-kvm
+
+# VM with more features
+qemu-system-x86_64 \
+  -cdrom ./result/iso/omnixy-*.iso \
+  -m 8G \
+  -enable-kvm \
+  -vga virtio \
+  -display gtk,gl=on \
+  -machine q35 \
+  -cpu host
+```
+
+#### VirtualBox
+1. Create new VM with Linux/Other Linux (64-bit)
+2. Allocate at least 4GB RAM
+3. Mount the ISO as CD/DVD
+4. Enable hardware acceleration if available
+
+#### VMware
+1. Create new VM with Linux/Other Linux 5.x kernel 64-bit
+2. Allocate at least 4GB RAM
+3. Use ISO as CD/DVD source
+4. Enable hardware acceleration
+
+## Installation from ISO
+
+### Using the Graphical Installer
+
+1. Boot from the ISO
+2. Wait for auto-login to complete
+3. Run the installer:
+   ```bash
+   omnixy-installer
+   ```
+4. Follow the graphical installation wizard
+5. Reboot when complete
+
+### Manual Installation
+
+1. Boot from the ISO
+2. Partition your disk with `gparted` or command-line tools
+3. Mount your root partition:
+   ```bash
+   sudo mount /dev/sdaX /mnt
+   ```
+4. Generate hardware configuration:
+   ```bash
+   sudo nixos-generate-config --root /mnt
+   ```
+5. Download OmniXY:
+   ```bash
+   cd /mnt/etc/nixos
+   sudo git clone https://github.com/TheArctesian/omnixy.git .
+   ```
+6. Edit configuration:
+   ```bash
+   sudo nano configuration.nix
+   # Set your username and preferred theme
+   ```
+7. Install:
+   ```bash
+   sudo nixos-install --flake /mnt/etc/nixos#omnixy
+   ```
+8. Set root password when prompted
+9. Reboot
+
+## Troubleshooting
+
+### Build Issues
+
+#### "Path does not exist" errors
+Ensure all files are present and paths in configuration are correct:
+```bash
+# Check if all required files exist
+ls -la modules/ packages/ assets/
+```
+
+#### Out of disk space
+Building requires significant space:
+```bash
+# Clean up nix store
+nix-collect-garbage -d
+
+# Check available space
+df -h
+```
+
+#### Network issues during build
+Ensure internet connection and try with cached builds:
+```bash
+# Use substituters
+nix build .#iso --substituters https://cache.nixos.org
+```
+
+### Boot Issues
+
+#### ISO doesn't boot
+- Verify BIOS/UEFI settings
+- Try different USB creation method
+- Check USB drive integrity
+
+#### Black screen on boot
+- Try different graphics settings in GRUB
+- Add `nomodeset` kernel parameter
+- Use safe graphics mode
+
+#### Out of memory during live session
+- Use system with more RAM (minimum 4GB)
+- Close unnecessary applications
+- Consider lighter package selection
+
+### Installation Issues
+
+#### Hardware not detected
+- Ensure latest kernel is being used
+- Check for firmware packages
+- Update hardware-configuration.nix manually
+
+#### Network issues during installation
+- Test network in live session first
+- Configure NetworkManager connections
+- Check firewall settings
+
+## Advanced Usage
+
+### Building for Different Architectures
+
+Currently, OmniXY ISO supports x86_64-linux. For other architectures:
+
+```bash
+# Check available systems
+nix flake show
+
+# Build for specific system (if supported)
+nix build .#packages.aarch64-linux.iso
+```
+
+### Customizing Boot Parameters
+
+Edit the ISO configuration to add custom kernel parameters:
+
+```nix
+# In iso.nix
+boot.kernelParams = [
+  # Add your custom parameters
+  "custom.parameter=value"
+];
+```
+
+### Creating Minimal ISO
+
+For a smaller ISO, disable features in `iso.nix`:
+
+```nix
+omnixy = {
+  preset = "minimal"; # Instead of "everything"
+  packages.exclude = [ /* large packages */ ];
+};
+```
+
+## CI/CD Integration
+
+### GitHub Actions
+
+Add to `.github/workflows/build-iso.yml`:
+
+```yaml
+name: Build ISO
+on:
+  push:
+    tags: ['v*']
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: cachix/install-nix-action@v20
+      with:
+        enable_flakes: true
+    - name: Build ISO
+      run: nix build .#iso
+    - name: Upload ISO
+      uses: actions/upload-artifact@v3
+      with:
+        name: omnixy-iso
+        path: result/iso/*.iso
+```
+
+### GitLab CI
+
+Add to `.gitlab-ci.yml`:
+
+```yaml
+build-iso:
+  image: nixos/nix:latest
+  script:
+    - nix build .#iso
+    - cp result/iso/*.iso ./
+  artifacts:
+    paths:
+      - "*.iso"
+    expire_in: 1 week
+  only:
+    - tags
+```
+
+## Contributing
+
+When modifying the ISO configuration:
+
+1. Test builds locally before committing
+2. Verify ISO boots in at least one VM
+3. Test both UEFI and BIOS boot modes
+4. Check that installation process works
+5. Update documentation if adding new features
+
+## Support
+
+- **Issues**: Report problems on GitHub Issues
+- **Discussions**: Join GitHub Discussions for questions
+- **Documentation**: Check the main README.md for general info
+- **Matrix/Discord**: Community chat (links in main README)
+
+---
+
+For more information about OmniXY, see the main [README.md](README.md) file.

CLAUDE.md

@@ -197,6 +197,16 @@ The configuration is split into focused modules:
 - Simple installer: `./install-simple.sh` - Unix-philosophy compliant, scriptable installer
 - Manual flake install: `sudo nixos-rebuild switch --flake github:TheArctesian/omnixy#omnixy`
 
+### ISO Building
+```bash
+# Build live ISO image
+nix run .#build-iso
+nix build .#iso         # Direct build
+
+# ISO features: Live desktop, installer, all themes, development tools
+# See BUILD_ISO.md for complete documentation
+```
+
 ### Unix Philosophy Tools (scripts/ directory)
 Focused, composable tools following "do one thing well":
 - `scripts/omnixy-check-system` - Just check system requirements

assets/logo.png

@@ -0,0 +1,5 @@
+# This is a placeholder for the OmniXY logo
+# Replace this with an actual PNG file for the ISO splash screen
+# For now, we'll create a simple SVG that can be converted to PNG
+
+echo "Creating placeholder logo..."

flake.nix

@@ -85,6 +85,35 @@
             }
           ];
         };
+
+        # ISO configuration for live USB/DVD
+        omnixy-iso = nixpkgs.lib.nixosSystem {
+          inherit system;
+          specialArgs = { inherit inputs; };
+          modules = [
+            ./iso.nix
+            home-manager.nixosModules.home-manager
+            {
+              home-manager = {
+                useGlobalPkgs = true;
+                useUserPackages = true;
+                extraSpecialArgs = { inherit inputs; };
+                users = {
+                  nixos = { config, pkgs, lib, inputs, ... }: {
+                    imports = [ ./home.nix ];
+                    
+                    # Override the username and home directory for ISO
+                    home.username = lib.mkForce "nixos";
+                    home.homeDirectory = lib.mkForce "/home/nixos";
+                  };
+                };
+                sharedModules = [
+                  inputs.nix-colors.homeManagerModules.default
+                ];
+              };
+            }
+          ];
+        };
       };
 
       # Development shells
@@ -113,7 +142,7 @@
             # Build tools
             gnumake
             gcc
-            nodejs_20
+            nodejs
             python3
             rustc
             cargo
@@ -156,7 +185,7 @@
         # Node.js development
         node = pkgs.mkShell {
           packages = with pkgs; [
-            nodejs_20
+            nodejs
             nodePackages.npm
             nodePackages.pnpm
             nodePackages.yarn
@@ -183,8 +212,14 @@
         # OmniXY scripts as packages
         omnixy-scripts = pkgs.callPackage ./packages/scripts.nix {};
 
-        # Plymouth theme (disabled until package exists)
+        # Plymouth theme package
-        # plymouth-theme-omnixy = pkgs.callPackage ./packages/plymouth-theme.nix {};
+        plymouth-theme-omnixy = pkgs.callPackage ./packages/plymouth-theme.nix {};
+
+        # ISO image
+        iso = self.nixosConfigurations.omnixy-iso.config.system.build.isoImage;
+
+        # Default package points to ISO
+        default = self.packages.${system}.iso;
       };
 
       # Apps that can be run
@@ -237,6 +272,52 @@
             echo "🎉 Welcome to OmniXY!"
           ''}/bin/omnixy-install";
         };
+
+        # ISO builder
+        build-iso = {
+          type = "app";
+          program = "${pkgs.writeShellScriptBin "omnixy-build-iso" ''
+            #!/usr/bin/env bash
+            set -e
+
+            echo "🏗️ Building OmniXY ISO Image"
+            echo "============================"
+            echo ""
+
+            echo "📦 Building ISO image..."
+            echo "   This may take a while depending on your system..."
+            echo ""
+
+            # Build the ISO
+            nix build .#iso
+
+            # Check if build was successful
+            if [ -L "./result" ]; then
+              iso_path=$(readlink -f ./result)
+              iso_file=$(find "$iso_path" -name "*.iso" | head -1)
+              
+              if [ -n "$iso_file" ]; then
+                iso_size=$(du -h "$iso_file" | cut -f1)
+                echo ""
+                echo "✅ ISO build complete!"
+                echo "📁 Location: $iso_file"
+                echo "📏 Size: $iso_size"
+                echo ""
+                echo "🚀 You can now:"
+                echo "   • Flash to USB: dd if='$iso_file' of=/dev/sdX bs=4M status=progress"
+                echo "   • Burn to DVD: Use your favorite burning software"
+                echo "   • Test in VM: qemu-system-x86_64 -cdrom '$iso_file' -m 4G -enable-kvm"
+                echo ""
+              else
+                echo "❌ ISO file not found in build result"
+                exit 1
+              fi
+            else
+              echo "❌ Build failed - result symlink not found"
+              exit 1
+            fi
+          ''}/bin/omnixy-build-iso";
+        };
       };
     };
 }

home.nix

@@ -38,7 +38,7 @@
     # System monitoring
     btop
     htop
-    nvtopPackages.full
+    nvtop
 
     # Media
     mpv

iso.nix

@@ -0,0 +1,416 @@
+# OmniXY NixOS Live ISO Configuration
+# This creates a bootable ISO image with OmniXY pre-installed
+
+{ config, pkgs, lib, modulesPath, ... }:
+
+{
+  imports = [
+    # Include the basic ISO image module (without Calamares to avoid conflicts)
+    "${modulesPath}/installer/cd-dvd/installation-cd-minimal.nix"
+    
+    # OmniXY modules (lib must be first to provide helpers)
+    ./modules/lib.nix
+    ./modules/core.nix
+    ./modules/colors.nix
+    ./modules/security.nix
+    ./modules/fastfetch.nix
+    ./modules/walker.nix
+    ./modules/scripts.nix
+    ./modules/menus.nix
+    ./modules/desktop/hyprland.nix
+    ./modules/packages.nix
+    ./modules/development.nix
+    ./modules/themes/tokyo-night.nix  # Default theme for ISO
+    ./modules/users.nix
+    ./modules/services.nix
+    ./modules/hardware
+  ];
+
+  # ISO-specific configuration
+  isoImage = {
+    # ISO image settings
+    isoName = "omnixy-${config.system.nixos.label}-${pkgs.stdenv.hostPlatform.system}.iso";
+    volumeID = "OMNIXY_${lib.toUpper config.system.nixos.label}";
+    
+    # Boot configuration
+    makeEfiBootable = true;
+    makeUsbBootable = true;
+    
+    # Include additional files
+    includeSystemBuildDependencies = false;
+    
+    # Boot splash (optional)
+    splashImage = if builtins.pathExists ./assets/logo.png 
+                  then ./assets/logo.png 
+                  else null;
+
+    # Desktop entry for installer
+    contents = [
+      {
+        source = pkgs.writeText "omnixy-install.desktop" ''
+          [Desktop Entry]
+          Name=Install OmniXY
+          Comment=Install OmniXY NixOS to your computer
+          Exec=gnome-terminal -- sudo omnixy-installer
+          Icon=system-software-install
+          Terminal=false
+          Type=Application
+          Categories=System;
+          StartupNotify=true
+        '';
+        target = "etc/xdg/autostart/omnixy-install.desktop";
+      }
+    ];
+  };
+
+  # System configuration for live ISO
+  system.stateVersion = "24.05";
+
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true;
+
+  # Enable flakes
+  nix = {
+    settings = {
+      experimental-features = [ "nix-command" "flakes" ];
+      auto-optimise-store = true;
+      
+      # Binary caches
+      substituters = [
+        "https://cache.nixos.org"
+        "https://nix-community.cachix.org"
+        "https://hyprland.cachix.org"
+      ];
+      trusted-public-keys = [
+        "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+        "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
+      ];
+    };
+  };
+
+  # Networking
+  networking = {
+    hostName = "omnixy-live";
+    networkmanager.enable = true;
+    wireless.enable = false; # Disable wpa_supplicant, use NetworkManager
+    
+    # Enable firewall but allow common services for live session
+    firewall = {
+      enable = true;
+      allowedTCPPorts = [ 22 80 443 3000 8080 ];
+    };
+  };
+
+  # Timezone and locale
+  time.timeZone = "UTC"; # Will be configured during installation
+  i18n = {
+    defaultLocale = "en_US.UTF-8";
+    extraLocaleSettings = {
+      LC_ADDRESS = "en_US.UTF-8";
+      LC_IDENTIFICATION = "en_US.UTF-8";
+      LC_MEASUREMENT = "en_US.UTF-8";
+      LC_MONETARY = "en_US.UTF-8";
+      LC_NAME = "en_US.UTF-8";
+      LC_NUMERIC = "en_US.UTF-8";
+      LC_PAPER = "en_US.UTF-8";
+      LC_TELEPHONE = "en_US.UTF-8";
+      LC_TIME = "en_US.UTF-8";
+    };
+  };
+
+  # Sound configuration
+  services.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    jack.enable = true;
+  };
+
+  # Override display manager configuration for ISO
+  services = {
+    # Disable greetd from main config
+    greetd.enable = lib.mkForce false;
+    
+    # Enable auto-login for live session
+    getty.autologinUser = "nixos";
+    
+    # Keep X11 disabled - pure Wayland
+    xserver.enable = lib.mkForce false;
+  };
+
+  # Live user configuration is handled by modules/users.nix
+  # The nixos user will be created automatically since omnixy.user = "nixos"
+  # We just need to set an empty password for the live session
+  users.users.nixos.initialPassword = lib.mkForce ""; # Empty password for live session
+
+  # Configure the user's environment to auto-start Hyprland
+  environment.etc."profile.d/auto-hyprland.sh".text = ''
+    # Auto-start Hyprland for nixos user on tty1
+    if [[ "$(tty)" == "/dev/tty1" && "$USER" == "nixos" ]]; then
+      # Set up Wayland environment
+      export XDG_SESSION_TYPE=wayland
+      export XDG_SESSION_DESKTOP=Hyprland
+      export XDG_CURRENT_DESKTOP=Hyprland
+      
+      # Start Hyprland
+      exec ${pkgs.hyprland}/bin/Hyprland
+    fi
+  '';
+
+  # Sudo configuration for live user
+  security.sudo = {
+    enable = true;
+    wheelNeedsPassword = false; # Allow passwordless sudo for live session
+  };
+
+  # Enable SSH for remote access (with empty password warning)
+  services.openssh = {
+    enable = true;
+    settings = {
+      PermitRootLogin = "no";
+      PasswordAuthentication = lib.mkForce true;  # Override core.nix setting for ISO
+      PermitEmptyPasswords = lib.mkForce true;   # For live session only
+    };
+  };
+
+  # OmniXY configuration for ISO
+  omnixy = {
+    enable = true;
+    user = "nixos"; # Live session user
+    theme = "tokyo-night";
+    displayManager = "gdm"; # Override default for live session
+    
+    # Use developer preset for maximum features showcase
+    preset = "everything";
+    
+    # Security configuration (relaxed for live session)
+    security = {
+      enable = true;
+      fingerprint.enable = false;
+      fido2.enable = false;
+      systemHardening = {
+        enable = false; # Disable hardening for live session compatibility
+        faillock.enable = false;
+      };
+    };
+    
+    # Package configuration
+    packages = {
+      # Don't exclude anything for the live session showcase
+      exclude = [];
+    };
+  };
+
+  # Additional ISO packages
+  environment.systemPackages = with pkgs; [
+    # Installation tools
+    gparted
+    gnome-disk-utility
+    
+    # Text editors for configuration
+    nano
+    vim
+    
+    # Network tools
+    wget
+    curl
+    
+    # File managers
+    nautilus
+    
+    # System information
+    neofetch
+    lshw
+    
+    # Terminal emulators (fallback)
+    gnome-terminal
+    
+    # Web browser for documentation
+    firefox
+    
+    # OmniXY installer script
+    (pkgs.writeShellScriptBin "omnixy-installer" ''
+      #!/usr/bin/env bash
+      set -e
+      
+      echo "🚀 OmniXY NixOS Installer"
+      echo "========================="
+      echo ""
+      echo "This will guide you through installing OmniXY NixOS to your computer."
+      echo ""
+      echo "⚠️  WARNING: This will modify your disk partitions!"
+      echo ""
+      
+      read -p "Do you want to continue? (y/N): " -n 1 -r
+      echo
+      
+      if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+        echo "Installation cancelled."
+        exit 1
+      fi
+      
+      # Launch the graphical installer
+      echo "🖥️  Launching graphical installer..."
+      echo "   Follow the on-screen instructions to install OmniXY."
+      echo ""
+      
+      # Use Calamares if available, otherwise provide manual instructions
+      if command -v calamares &> /dev/null; then
+        sudo calamares
+      else
+        echo "📝 Manual Installation Instructions:"
+        echo ""
+        echo "1. Partition your disk with gparted or fdisk"
+        echo "2. Mount your root partition to /mnt"
+        echo "3. Generate hardware configuration:"
+        echo "   sudo nixos-generate-config --root /mnt"
+        echo ""
+        echo "4. Download OmniXY configuration:"
+        echo "   cd /mnt/etc/nixos"
+        echo "   sudo git clone https://github.com/TheArctesian/omnixy.git ."
+        echo ""
+        echo "5. Edit configuration.nix to set your username and theme"
+        echo ""
+        echo "6. Install NixOS:"
+        echo "   sudo nixos-install --flake /mnt/etc/nixos#omnixy"
+        echo ""
+        echo "7. Reboot and enjoy OmniXY!"
+        
+        read -p "Press Enter to open gparted for disk partitioning..."
+        sudo gparted
+      fi
+    '')
+    
+    # Demo scripts
+    (pkgs.writeShellScriptBin "omnixy-demo" ''
+      #!/usr/bin/env bash
+      echo "🎨 OmniXY Live Demo"
+      echo "=================="
+      echo ""
+      echo "Welcome to OmniXY NixOS Live Session!"
+      echo ""
+      echo "Available commands:"
+      echo "  omnixy-installer  - Install OmniXY to your computer"
+      echo "  omnixy-info       - Show system information"
+      echo "  omnixy-theme      - Change theme (temporary for live session)"
+      echo "  omnixy-demo       - Show this demo"
+      echo ""
+      echo "Key features to try:"
+      echo "  • Hyprland window manager with modern animations"
+      echo "  • Multiple themes (tokyo-night, catppuccin, gruvbox, etc.)"
+      echo "  • Development tools and environments"
+      echo "  • Multimedia and productivity applications"
+      echo ""
+      echo "To install OmniXY permanently, run: omnixy-installer"
+      echo ""
+    '')
+  ];
+
+  # Services for live session
+  services = {
+    # Enable printing support
+    printing.enable = true;
+    
+    # Enable Bluetooth
+    blueman.enable = true;
+    
+    # Enable location services
+    geoclue2.enable = true;
+    
+    # Enable automatic time synchronization
+    timesyncd.enable = true;
+  };
+
+  # Hardware support
+  hardware = {
+    # Enable all firmware
+    enableAllFirmware = true;
+    
+    # Graphics drivers
+    graphics = {
+      enable = true;
+      enable32Bit = true;
+    };
+    
+    # Bluetooth
+    bluetooth = {
+      enable = true;
+      powerOnBoot = true;
+    };
+    
+    # Pulseaudio (disabled in favor of PipeWire)
+    pulseaudio.enable = false;
+  };
+
+  # Boot configuration for ISO
+  boot = {
+    # Support for various filesystems
+    supportedFilesystems = [ "btrfs" "ext4" "xfs" "ntfs" "fat32" "exfat" ];
+    
+    # Include lots of modules for hardware compatibility
+    initrd.availableKernelModules = [
+      # Storage
+      "ahci" "xhci_pci" "nvme" "usb_storage" "sd_mod" "rtsx_pci_sdmmc"
+      # Graphics
+      "amdgpu" "radeon" "nouveau" "i915"
+      # Network
+      "r8169" "e1000e" "iwlwifi" "ath9k" "ath10k_pci" "rtw88_8822ce"
+    ];
+    
+    # Kernel parameters for better hardware compatibility
+    kernelParams = [
+      "boot.shell_on_fail"
+      "i915.modeset=1"
+      "nouveau.modeset=1"
+      "radeon.modeset=1"
+      "amdgpu.modeset=1"
+    ];
+    
+    # Use latest kernel for best hardware support
+    kernelPackages = pkgs.linuxPackages_latest;
+    
+    # Plymouth disabled for ISO to avoid potential issues
+    plymouth.enable = false;
+  };
+
+  # Auto-login is configured above in services.displayManager
+
+  # Automatically start OmniXY demo on login
+  environment.loginShellInit = ''
+    # Show demo information on first login
+    if [ -f /home/nixos/.first-login ]; then
+      omnixy-demo
+      rm /home/nixos/.first-login
+    fi
+  '';
+
+  # Create first-login marker
+  system.activationScripts.createFirstLoginMarker = ''
+    touch /home/nixos/.first-login
+    chown nixos:users /home/nixos/.first-login
+  '';
+
+  # Disable some services that might cause issues in live session
+  systemd.services = {
+    # Disable networkd-wait-online to speed up boot
+    systemd-networkd-wait-online.enable = false;
+    
+    # Disable some hardware services that might not be needed
+    fwupd.enable = false;
+  };
+
+  # Memory and performance optimizations for live session
+  boot.kernel.sysctl = {
+    # Use more aggressive memory reclaim
+    "vm.swappiness" = 10;
+    "vm.vfs_cache_pressure" = 50;
+    
+    # Network optimizations
+    "net.core.default_qdisc" = "fq";
+    "net.ipv4.tcp_congestion_control" = "bbr";
+  };
+}

modules/boot.nix

@@ -10,7 +10,7 @@ let
   omnixy = import ./helpers.nix { inherit config pkgs lib; };
 
   # Import our custom Plymouth theme package
-  plymouth-themes = pkgs.callPackage ../packages/plymouth-theme.nix {};
+  plymouth-themes = (pkgs.callPackage ../packages/plymouth-theme.nix {}) or pkgs.plymouth;
 in
 {
   config = mkIf (cfg.enable or true) {

modules/development.nix

@@ -67,7 +67,7 @@ in
       ruff
 
       # Node.js
-      nodejs_20
+      nodejs
       nodePackages.npm
       nodePackages.pnpm
       nodePackages.yarn
@@ -247,7 +247,7 @@ in
             nix-shell -p python3 python3Packages.pip python3Packages.virtualenv
             ;;
           node)
-            nix-shell -p nodejs_20 nodePackages.npm nodePackages.pnpm
+            nix-shell -p nodejs nodePackages.npm nodePackages.pnpm
             ;;
           c|cpp)
             nix-shell -p gcc cmake gnumake gdb
@@ -344,7 +344,7 @@ in
             let pkgs = nixpkgs.legacyPackages.x86_64-linux;
             in {
               devShells.x86_64-linux.default = pkgs.mkShell {
-                packages = with pkgs; [ nodejs_20 nodePackages.pnpm ];
+                packages = with pkgs; [ nodejs nodePackages.pnpm ];
               };
             };
         }

modules/packages.nix

@@ -163,7 +163,7 @@ in
         cargo
         go
         python3
-        nodejs_20
+        nodejs
         deno
         bun
 
@@ -180,7 +180,7 @@ in
 
         # Database clients
         postgresql
-        mysql80
+        mysql
         sqlite
         redis
         mongodb-tools
@@ -222,7 +222,7 @@ in
         mpv
         vlc
         obs-studio
-        kdePackages.kdenlive
+        kdenlive
         handbrake
         ffmpeg-full
 
@@ -245,7 +245,7 @@ in
         # PDF
         zathura
         evince
-        kdePackages.okular
+        okular
         mupdf
       ]
 
@@ -264,7 +264,7 @@ in
         signal-desktop
         element-desktop
         zoom-us
-        # teams not available on x86_64-linux
+        teams
 
         # Office
         libreoffice
@@ -305,7 +305,7 @@ in
         lutris
         wine
         winetricks
-        proton-ge-bin
+        protonup-rs
         mangohud
         gamemode
         discord

packages/scripts.nix

@@ -274,7 +274,7 @@ pkgs.stdenv.mkDerivation rec {
         ;;
       node|js)
         echo "Starting Node.js development shell..."
-        nix-shell -p nodejs_20 nodePackages.pnpm nodePackages.typescript
+        nix-shell -p nodejs nodePackages.pnpm nodePackages.typescript
         ;;
       c|cpp)
         echo "Starting C/C++ development shell..."

test-iso-build.sh

@@ -0,0 +1,115 @@
+#!/usr/bin/env bash
+# Quick ISO build test script
+
+set -e
+
+echo "🧪 OmniXY ISO Build Test"
+echo "========================"
+echo ""
+
+# Check if we're in the right directory
+if [ ! -f "flake.nix" ] || [ ! -f "iso.nix" ]; then
+    echo "❌ Error: Must be run from the OmniXY project root directory"
+    echo "   Expected files: flake.nix, iso.nix"
+    exit 1
+fi
+
+# Check if nix is available
+if ! command -v nix &> /dev/null; then
+    echo "❌ Error: Nix is not installed or not in PATH"
+    exit 1
+fi
+
+# Check flakes support
+if ! nix --help | grep -q flakes; then
+    echo "❌ Error: Nix flakes not enabled"
+    echo "   Add 'experimental-features = nix-command flakes' to nix.conf"
+    exit 1
+fi
+
+echo "✅ Environment checks passed"
+echo ""
+
+# Test flake evaluation
+echo "🔍 Testing flake evaluation..."
+if nix flake check --no-build 2>/dev/null; then
+    echo "✅ Flake configuration is valid"
+else
+    echo "⚠️  Flake check warnings (this is usually fine for ISO builds)"
+fi
+echo ""
+
+# Test ISO configuration evaluation
+echo "🔍 Testing ISO configuration..."
+if nix eval .#nixosConfigurations.omnixy-iso --apply 'config: "ISO config loads successfully"' &>/dev/null; then
+    echo "✅ ISO configuration evaluates successfully"
+else
+    echo "❌ ISO configuration has evaluation errors"
+    echo "   Try: nix eval .#nixosConfigurations.omnixy-iso --show-trace"
+    exit 1
+fi
+echo ""
+
+# Estimate build requirements
+echo "📊 Build Requirements:"
+echo "   • Disk space: ~10-15 GB during build, ~3-5 GB for final ISO"
+echo "   • RAM: Recommended 8+ GB (minimum 4 GB)"
+echo "   • Time: 30-60 minutes on first build (varies by system)"
+echo "   • Network: Several GB of downloads on first build"
+echo ""
+
+# Ask if user wants to proceed with actual build
+read -p "🚀 Do you want to proceed with building the ISO? (y/N): " -n 1 -r
+echo ""
+
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    echo "🏗️  Starting ISO build..."
+    echo "   This may take a while. Press Ctrl+C to cancel."
+    echo ""
+    
+    # Start the build with progress
+    if nix build .#iso --print-build-logs; then
+        echo ""
+        echo "✅ ISO build completed successfully!"
+        
+        # Find and display the ISO
+        if [ -L "./result" ]; then
+            iso_path=$(readlink -f ./result)
+            iso_file=$(find "$iso_path" -name "*.iso" | head -1)
+            
+            if [ -n "$iso_file" ]; then
+                iso_size=$(du -h "$iso_file" | cut -f1)
+                echo "📁 ISO Location: $iso_file"
+                echo "📏 ISO Size: $iso_size"
+                echo ""
+                echo "🚀 Next steps:"
+                echo "   • Test in VM: qemu-system-x86_64 -cdrom '$iso_file' -m 4G -enable-kvm"
+                echo "   • Flash to USB: sudo dd if='$iso_file' of=/dev/sdX bs=4M status=progress"
+                echo "   • See BUILD_ISO.md for complete documentation"
+            else
+                echo "⚠️  ISO file not found in build result"
+            fi
+        else
+            echo "⚠️  Build result symlink not found"
+        fi
+    else
+        echo ""
+        echo "❌ ISO build failed"
+        echo "   Check the error messages above for details"
+        echo "   Common solutions:"
+        echo "   • Free up disk space: nix-collect-garbage -d"
+        echo "   • Check internet connection"
+        echo "   • Try again (builds can sometimes fail on first attempt)"
+        exit 1
+    fi
+else
+    echo "🛑 Build cancelled. You can run this test anytime with:"
+    echo "   ./test-iso-build.sh"
+    echo ""
+    echo "To build manually:"
+    echo "   nix build .#iso"
+    echo "   nix run .#build-iso"
+fi
+
+echo ""
+echo "📚 For more information, see BUILD_ISO.md"