fix: dev vm enhacement, switch podman

modules/nixos/audio.nix

@@ -0,0 +1,13 @@
+{ lib, ... }: {
+  # Modern audio stack - PipeWire replaces PulseAudio + JACK + ALSA
+  services.pipewire = {
+    enable = lib.mkDefault true;
+    alsa.enable = lib.mkDefault true;
+    alsa.support32Bit = lib.mkDefault true; # For 32-bit games/apps
+    pulse.enable = lib.mkDefault true; # PulseAudio compatibility
+    jack.enable = lib.mkDefault true; # JACK compatibility
+  };
+
+  # Real-time audio priority
+  security.rtkit.enable = lib.mkDefault true;
+}

modules/nixos/bluetooth.nix

@@ -0,0 +1,12 @@
+{ lib, ... }: {
+  hardware.bluetooth = {
+    enable = lib.mkDefault false; # Enable when needed
+    powerOnBoot = lib.mkDefault true;
+    settings = {
+      General = {
+        Enable = "Source,Sink,Media,Socket";
+        Experimental = true; # Better codec support
+      };
+    };
+  };
+}

modules/nixos/containerization.nix

@@ -1,15 +1,46 @@
-{ config, lib, pkgs, ... }:
+{ config, lib, pkgs, user, ... }:
 let
-  inherit (lib) mkEnableOption mkOption mkIf types mkMerge mkAfter optionals;
+  inherit (lib)
+    mkEnableOption mkOption mkIf types mkMerge mkAfter optionals mkDefault;
   cfg = config.rsydn.containerization;
 in {
   options.rsydn.containerization = {
-    docker = {
+    podman = {
       enable = mkOption {
         type = types.bool;
         default = true;
         description =
-          "Enable the Docker daemon with sane defaults for development.";
+          "Enable Podman for rootless containers as the primary engine.";
+      };
+
+      dockerCompat = mkOption {
+        type = types.bool;
+        default = true;
+        description =
+          "Expose the Docker-compatible socket for CLI compatibility.";
+      };
+
+      enableDnsnamePlugin = mkOption {
+        type = types.bool;
+        default = true;
+        description =
+          "Enable the dnsname CNI plugin so containers can resolve each other.";
+      };
+
+      extraPackages = mkOption {
+        type = types.listOf types.package;
+        default = with pkgs; [ podman-compose podman-tui ];
+        description =
+          "Additional Podman-related packages to install system-wide.";
+      };
+    };
+
+    docker = {
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description =
+          "Enable the Docker daemon alongside Podman when explicitly requested.";
       };
 
       autoPrune = mkOption {
@@ -58,6 +89,27 @@ in {
   };
 
   config = mkMerge [
+    (mkIf cfg.podman.enable {
+      virtualisation.podman = {
+        enable = true;
+        dockerCompat = cfg.podman.dockerCompat;
+        defaultNetwork.settings.dnsname.enable = cfg.podman.enableDnsnamePlugin;
+      };
+
+      environment.systemPackages = mkAfter cfg.podman.extraPackages;
+
+      users.users.${user} = {
+        subUidRanges = mkDefault [{
+          startUid = 100000;
+          count = 65536;
+        }];
+        subGidRanges = mkDefault [{
+          startGid = 100000;
+          count = 65536;
+        }];
+      };
+    })
+
     (mkIf cfg.docker.enable {
       virtualisation.docker = {
         enable = true;

modules/nixos/desktops/README.md

@@ -0,0 +1,176 @@
+# Desktop Environments
+
+This directory contains system-level desktop environment configurations for NixOS desktop hosts.
+
+## Structure
+
+```
+desktops/
+├── base.nix                     # Shared desktop settings (XDG portals, polkit, gvfs)
+├── plasma.nix                   # KDE Plasma 6 + SDDM
+├── hyprland/                    # Hyprland tiling compositor
+│   └── default.nix
+├── gaming.nix                   # Steam, Proton, GameMode, gaming tools
+├── apps/                        # Desktop applications
+│   ├── browsers.nix             # Brave, Zen Browser
+│   └── terminals.nix            # Alacritty (Dracula theme)
+├── themes/                      # Theme configurations
+│   ├── catppuccin.nix           # Catppuccin GTK/Qt theme
+│   └── default.nix              # Adwaita default theme
+└── hardware-configuration.nix   # Hardware-specific settings (generated)
+```
+
+## Available Desktop Environments
+
+### KDE Plasma 6 (`plasma.nix`)
+- Full-featured desktop with SDDM display manager
+- Wayland-first with X11 fallback
+- Includes essential KDE applications (commented out by default)
+- User-level Plasma configuration via Home Manager (optional)
+
+### Hyprland (`hyprland/default.nix`)
+- Dynamic tiling Wayland compositor
+- Minimal default keybinds (SUPER key)
+- Includes Wayland utilities: wl-clipboard, grim, slurp
+- User-level configuration for keybinds, visual settings
+
+## Additional Modules
+
+### Gaming (`gaming.nix`)
+**Features:**
+- Steam with Proton GE compatibility
+- GameMode for performance optimization
+- 32-bit graphics support for games
+- Wine, Winetricks, Lutris, Heroic launcher
+- MangoHud for FPS overlay
+- Discord for communication
+- Increased inotify watchers for modding tools
+
+### Apps (`apps/`)
+**Browsers** (`browsers.nix`):
+- Brave, Zen Browser (enabled by default)
+
+**Terminals** (`terminals.nix`):
+- Alacritty enabled with JetBrains Mono + Dracula theme
+- Kitty and WezTerm explicitly disabled to keep a single default
+
+### Themes (`themes/`)
+**Catppuccin** (`catppuccin.nix`):
+- Soothing pastel theme for GTK and Qt
+- Mocha variant with blue accents
+- Kvantum Qt theme engine
+- Papirus icon theme
+- Catppuccin cursor theme
+
+**Default** (`default.nix`):
+- Adwaita theme (GNOME default)
+- Minimal theming setup
+
+## Usage
+
+### Single Desktop Environment
+
+Import one desktop environment in your host configuration:
+
+```nix
+# modules/nixos/hosts/your-host.nix
+{
+  imports = [
+    ../desktops/plasma.nix
+    # OR
+    # ../desktops/hyprland
+  ];
+}
+```
+
+### Multi-Desktop Setup (Switch at Login)
+
+The current desktop host uses both KDE Plasma (for gaming) and Hyprland (for development):
+
+```nix
+# modules/nixos/hosts/desktop.nix
+{
+  imports = [
+    # Hardware
+    ../desktops/hardware-configuration.nix
+
+    # Desktop Environments
+    ../desktops/plasma.nix      # KDE Plasma (for gaming)
+    ../desktops/hyprland        # Hyprland (for development)
+
+    # Desktop Apps & Theme
+    ../desktops/apps/browsers.nix
+    ../desktops/apps/terminals.nix
+    ../desktops/themes/catppuccin.nix
+
+    # Gaming & Features
+    ../desktops/gaming.nix
+    ../bluetooth.nix
+  ];
+
+  boot = {
+    loader.systemd-boot.enable = true;
+    loader.efi.canTouchEfiVariables = true;
+    kernelPackages = pkgs.linuxPackages_cachyos-lts;
+  };
+
+  networking.hostName = "desktop";
+  system.stateVersion = "24.05";
+}
+```
+
+**Boot Configuration:**
+- CachyOS LTS kernel for gaming performance
+- Systemd-boot for EFI boot management
+
+**Switch Desktop at Login:**
+- SDDM login screen shows both Plasma and Hyprland sessions
+- Select desired environment before logging in
+
+## Base Desktop Settings (`base.nix`)
+
+Shared settings imported by all desktop environments:
+
+- **XDG Portals**: Desktop integration, file picker, screen sharing
+- **PolicyKit**: Privilege escalation for GUI apps
+- **GVFS**: Trash, mounting, network drives
+- **Common Packages**: pavucontrol, networkmanagerapplet
+
+## Adding a New Desktop Environment
+
+1. Create a new file (e.g., `gnome.nix`)
+2. Import `./base.nix` for shared settings
+3. Enable the desktop environment and display manager
+4. Add essential system packages
+5. Configure user-level settings via Home Manager
+
+Example:
+
+```nix
+{ lib, pkgs, user, ... }: {
+  imports = [ ./base.nix ];
+
+  services.xserver = {
+    enable = true;
+    desktopManager.gnome.enable = true;
+    displayManager.gdm.enable = true;
+  };
+
+  environment.systemPackages = with pkgs; [
+    gnome-tweaks
+  ];
+}
+```
+
+## Testing Desktop Changes
+
+```bash
+# Dry-run to check closure
+nix build .#nixosConfigurations.desktop.config.system.build.toplevel --dry-run
+
+# Build and switch
+sudo nixos-rebuild switch --flake .#desktop
+
+# Format before committing
+nix fmt
+```

modules/nixos/desktops/apps/browsers.nix

@@ -0,0 +1,8 @@
+{ pkgs, user, ... }: {
+  # Browser configurations for desktop users
+
+  home-manager.users.${user} = {
+    # User packages: Browsers
+    home.packages = with pkgs; [ brave ];
+  };
+}

modules/nixos/desktops/apps/terminals.nix

@@ -0,0 +1,114 @@
+{ lib, pkgs, user, ... }: {
+  # Terminal emulator configurations for desktop users
+
+  home-manager.users.${user} = {
+    # Provide JetBrains Mono font locally for Alacritty.
+    home.packages = with pkgs; [ jetbrains-mono ];
+
+    # Ensure Kitty stays disabled when desktop module is imported.
+    programs.kitty.enable = lib.mkForce false;
+
+    # Configure Alacritty as the default terminal with Dracula theme.
+    programs.alacritty = {
+      enable = true;
+      settings = {
+        window.opacity = 0.85;
+
+        font = {
+          normal = {
+            family = "JetBrains Mono";
+            style = "Regular";
+          };
+          bold = {
+            family = "JetBrains Mono";
+            style = "Bold";
+          };
+          italic = {
+            family = "JetBrains Mono";
+            style = "Italic";
+          };
+          bold_italic = {
+            family = "JetBrains Mono";
+            style = "Bold Italic";
+          };
+          size = 12.0;
+        };
+
+        colors = {
+          primary = {
+            background = "#282a36";
+            foreground = "#f8f8f2";
+            bright_foreground = "#ffffff";
+          };
+
+          cursor = {
+            text = "#282a36";
+            cursor = "#f8f8f2";
+          };
+
+          vi_mode_cursor = {
+            text = "CellBackground";
+            cursor = "CellForeground";
+          };
+
+          selection = {
+            text = "CellForeground";
+            background = "#44475a";
+          };
+
+          normal = {
+            black = "#21222c";
+            red = "#ff5555";
+            green = "#50fa7b";
+            yellow = "#f1fa8c";
+            blue = "#bd93f9";
+            magenta = "#ff79c6";
+            cyan = "#8be9fd";
+            white = "#f8f8f2";
+          };
+
+          bright = {
+            black = "#6272a4";
+            red = "#ff6e6e";
+            green = "#69ff94";
+            yellow = "#ffffa5";
+            blue = "#d6acff";
+            magenta = "#ff92df";
+            cyan = "#a4ffff";
+            white = "#ffffff";
+          };
+
+          search = {
+            matches = {
+              foreground = "#44475a";
+              background = "#50fa7b";
+            };
+            focused_match = {
+              foreground = "#44475a";
+              background = "#ffb86c";
+            };
+          };
+
+          footer_bar = {
+            background = "#282a36";
+            foreground = "#f8f8f2";
+          };
+
+          hints = {
+            start = {
+              foreground = "#282a36";
+              background = "#f1fa8c";
+            };
+            end = {
+              foreground = "#f1fa8c";
+              background = "#282a36";
+            };
+          };
+        };
+      };
+    };
+
+    # Keep WezTerm disabled to avoid conflicting terminal defaults.
+    programs.wezterm.enable = lib.mkForce false;
+  };
+}

modules/nixos/desktops/base.nix

@@ -0,0 +1,27 @@
+{ lib, pkgs, ... }: {
+  # Shared desktop settings (imported by all DEs)
+
+  # XDG portals for desktop integration
+  xdg.portal = {
+    enable = lib.mkDefault true;
+    extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
+  };
+
+  # Policy kit for privilege escalation
+  security.polkit.enable = lib.mkDefault true;
+
+  # GVFS for trash, mounting, etc
+  services.gvfs.enable = lib.mkDefault true;
+
+  # Common desktop packages
+  environment.systemPackages = with pkgs; [
+    # File managers (choose one)
+    # nautilus  # GNOME
+    # dolphin   # KDE
+    # thunar    # XFCE
+
+    # Basic utilities
+    pavucontrol # Audio control
+    networkmanagerapplet # Network management GUI
+  ];
+}

modules/nixos/desktops/gaming.nix

@@ -0,0 +1,76 @@
+{ pkgs, ... }: {
+  # Gaming configuration module
+  # Steam, Proton, Vulkan, Wine, and gaming optimizations
+
+  # Steam with Proton support
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true;
+    dedicatedServer.openFirewall = true;
+
+    # Enable Proton compatibility layer
+    extraCompatPackages = with pkgs;
+      [
+        proton-ge-bin # GloriousEggroll's Proton builds
+      ];
+  };
+
+  # GameMode for performance optimization
+  programs.gamemode = {
+    enable = true;
+    settings = {
+      general = { renice = 10; };
+      custom = {
+        start = "${pkgs.libnotify}/bin/notify-send 'GameMode started'";
+        end = "${pkgs.libnotify}/bin/notify-send 'GameMode ended'";
+      };
+    };
+  };
+
+  # Enable 32-bit graphics support for games
+  hardware.graphics = {
+    enable = true;
+    enable32Bit = true;
+  };
+
+  # Gaming-related packages
+  environment.systemPackages = with pkgs; [
+    # Game launchers
+    lutris
+    heroic # Epic Games, GOG launcher
+    # bottles # Windows app manager
+
+    # Wine for Windows games
+    wineWowPackages.stable # Both 32 and 64-bit Wine
+    winetricks
+
+    # Performance monitoring
+    mangohud # FPS overlay and performance metrics
+    # gamescope # Gaming compositor/micro-compositor
+
+    # Proton utilities
+    # protonup-qt # Manage Proton versions
+    protontricks # Winetricks for Proton games
+
+    # Communication
+    discord
+    # teamspeak_client
+
+    # Other gaming tools
+    # steam-run # Run non-Steam games in Steam runtime
+  ];
+
+  # Vulkan support
+  environment.variables = {
+    # Enable Vulkan validation layers for debugging (optional)
+    # VK_LAYER_PATH = "${pkgs.vulkan-validation-layers}/share/vulkan/explicit_layer.d";
+  };
+
+  # Kernel parameters for gaming performance (optional, adjust as needed)
+  # boot.kernelParams = [
+  #   "mitigations=off" # Disable CPU mitigations for performance (less secure)
+  # ];
+
+  # Increase file watchers for game modding tools
+  boot.kernel.sysctl = { "fs.inotify.max_user_watches" = 524288; };
+}

modules/nixos/desktops/hardware-configuration.nix

@@ -0,0 +1,78 @@
+# Hardware configuration for desktop
+# Generated by running: nixos-generate-config --show-hardware-config
+# This file contains hardware-specific settings that should be adjusted for your actual hardware
+
+{ config, lib, modulesPath, ... }:
+
+{
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  # Kernel modules needed during boot
+  # Adjust based on your hardware (NVMe, SATA, USB, etc.)
+  boot.initrd.availableKernelModules =
+    [ "nvme" "xhci_pci" "ahci" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ]; # Change to "kvm-intel" for Intel CPUs
+
+  # Filesystem configuration
+  # Run `lsblk -f` or `blkid` to get your actual device UUIDs
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/REPLACE-WITH-YOUR-ROOT-UUID";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/REPLACE-WITH-YOUR-BOOT-UUID";
+    fsType = "vfat";
+    options = [ "fmask=0022" "dmask=0022" ];
+  };
+
+  # Swap configuration (optional)
+  # Uncomment and adjust if you have a swap partition
+  # swapDevices = [
+  #   { device = "/dev/disk/by-uuid/REPLACE-WITH-YOUR-SWAP-UUID"; }
+  # ];
+
+  # CPU microcode updates
+  hardware.cpu.amd.updateMicrocode =
+    lib.mkDefault config.hardware.enableRedistributableFirmware;
+  # For Intel CPUs, use this instead:
+  # hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+
+  # GPU configuration
+  # Uncomment the section that matches your GPU
+
+  # NVIDIA GPU
+  # services.xserver.videoDrivers = [ "nvidia" ];
+  # hardware.nvidia = {
+  #   modesetting.enable = true;
+  #   powerManagement.enable = false;
+  #   powerManagement.finegrained = false;
+  #   open = false; # Use proprietary driver
+  #   nvidiaSettings = true;
+  #   package = config.boot.kernelPackages.nvidiaPackages.stable;
+  # };
+
+  # AMD GPU
+  # services.xserver.videoDrivers = [ "amdgpu" ];
+  # hardware.opengl = {
+  #   enable = true;
+  #   driSupport = true;
+  #   driSupport32Bit = true; # For 32-bit games
+  # };
+
+  # Intel GPU
+  # services.xserver.videoDrivers = [ "modesetting" ];
+  # hardware.opengl = {
+  #   enable = true;
+  #   extraPackages = with pkgs; [
+  #     intel-media-driver
+  #     vaapiIntel
+  #     vaapiVdpau
+  #     libvdpau-va-gl
+  #   ];
+  # };
+
+  # Maximum number of open files
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

modules/nixos/desktops/hyprland/default.nix

@@ -0,0 +1,71 @@
+{ pkgs, lib, user, ... }: {
+  imports = [ ../base.nix ];
+
+  # System-level: Enable Hyprland
+  programs.hyprland = {
+    enable = lib.mkDefault true;
+    xwayland.enable = lib.mkDefault true;
+  };
+
+  # Wayland-specific portal
+  xdg.portal.wlr.enable = lib.mkDefault true;
+
+  # System packages: Wayland essentials
+  environment.systemPackages = with pkgs; [
+    # Wayland essentials
+    wayland
+    wl-clipboard
+    wlr-randr
+
+    # Screenshot & screen recording
+    grim # Screenshot
+    slurp # Region selector
+    # wf-recorder  # Screen recording (optional)
+  ];
+
+  # User-level: Hyprland configuration
+  home-manager.users.${user} = {
+    wayland.windowManager.hyprland = {
+      enable = lib.mkDefault true;
+      xwayland.enable = lib.mkDefault true;
+
+      settings = {
+        # Minimal config - expand as needed
+        "$mod" = "SUPER";
+
+        # Example keybinds
+        bind = [
+          "$mod, Return, exec, kitty" # Terminal
+          "$mod, Q, killactive"
+          "$mod, M, exit"
+          "$mod, F, fullscreen"
+          "$mod, Space, togglefloating"
+
+          # Move focus
+          "$mod, h, movefocus, l"
+          "$mod, l, movefocus, r"
+          "$mod, k, movefocus, u"
+          "$mod, j, movefocus, d"
+        ];
+
+        # Visual settings
+        general = {
+          gaps_in = 5;
+          gaps_out = 10;
+          border_size = 2;
+        };
+
+        decoration = { rounding = 8; };
+      };
+    };
+
+    # User packages: Hyprland utilities
+    home.packages = with pkgs;
+      [
+        # Uncomment as needed:
+        # wofi       # Launcher
+        # waybar     # Status bar
+        # dunst      # Notifications
+      ];
+  };
+}

modules/nixos/desktops/plasma.nix

@@ -0,0 +1,42 @@
+{ lib, pkgs, user, ... }: {
+  imports = [ ./base.nix ];
+
+  # System-level: KDE Plasma 6
+  services.desktopManager.plasma6.enable = lib.mkDefault true;
+
+  # SDDM display manager
+  services.displayManager.sddm = {
+    enable = lib.mkDefault true;
+    wayland.enable = lib.mkDefault true;
+  };
+
+  # System packages: KDE applications
+  environment.systemPackages = with pkgs;
+    [
+      # KDE applications (uncomment as needed)
+      # kdePackages.kate          # Text editor
+      # kdePackages.dolphin       # File manager
+      # kdePackages.konsole       # Terminal
+      # kdePackages.okular        # Document viewer
+      # kdePackages.gwenview      # Image viewer
+      # kdePackages.spectacle     # Screenshot tool
+    ];
+
+  # User-level: KDE Plasma settings (optional)
+  home-manager.users.${user} = {
+    # KDE Plasma configuration via Home Manager (optional)
+    # programs.plasma = {
+    #   enable = true;
+    #   workspace = {
+    #     theme = "breeze-dark";
+    #     colorScheme = "BreezeDark";
+    #   };
+    # };
+
+    # User packages for KDE environment
+    home.packages = with pkgs;
+      [
+        # Add user-specific apps here
+      ];
+  };
+}

modules/nixos/desktops/themes/catppuccin.nix

@@ -0,0 +1,64 @@
+{ lib, pkgs, user, ... }: {
+  # Catppuccin theme configuration
+  # Soothing pastel theme for both GTK and Qt applications
+  # Works with KDE Plasma, Hyprland, and other desktop environments
+
+  # System packages: Theme engines and Catppuccin themes
+  environment.systemPackages = with pkgs; [
+    libsForQt5.qtstyleplugin-kvantum # Kvantum Qt theme engine
+    qt6Packages.qtstyleplugin-kvantum # Kvantum for Qt6
+    catppuccin-kvantum # Catppuccin theme for Kvantum
+    catppuccin-cursors # Catppuccin cursor theme
+  ];
+
+  home-manager.users.${user} = {
+    # GTK theming - Catppuccin Mocha variant
+    gtk = {
+      enable = true;
+      theme = {
+        name = "Catppuccin-Mocha-Standard-Blue-Dark";
+        package = pkgs.catppuccin-gtk.override {
+          accents = [
+            "blue"
+          ]; # Options: blue, flamingo, green, lavender, maroon, mauve, peach, pink, red, rosewater, sapphire, sky, teal, yellow
+          size = "standard"; # Options: standard, compact
+          variant = "mocha"; # Options: latte, frappe, macchiato, mocha
+        };
+      };
+
+      # GTK icon theme
+      iconTheme = {
+        name = "Papirus-Dark";
+        package = pkgs.papirus-icon-theme;
+      };
+    };
+
+    # Qt theming - Catppuccin via Kvantum
+    qt = {
+      enable = true;
+      platformTheme.name = "kvantum";
+      style.name = "kvantum";
+    };
+
+    # Kvantum configuration
+    xdg.configFile."Kvantum/kvantum.kvconfig".text = ''
+      [General]
+      theme=Catppuccin-Mocha-Blue
+    '';
+
+    # Cursor theme
+    home.pointerCursor = {
+      name = "catppuccin-mocha-blue-cursors";
+      package = pkgs.catppuccin-cursors.mochaBlue;
+      size = 24;
+      gtk.enable = true;
+      x11.enable = true;
+    };
+
+    # XDG user directories for desktop environments
+    xdg.userDirs = {
+      enable = true;
+      createDirectories = true;
+    };
+  };
+}

modules/nixos/desktops/themes/default.nix

@@ -0,0 +1,33 @@
+{ lib, pkgs, user, ... }: {
+  # Default theme configuration for desktop
+  # Simple Adwaita-dark theme that works across all desktop environments
+  # Switch to catppuccin.nix or create your own for custom themes
+
+  home-manager.users.${user} = {
+    # GTK theming - Adwaita Dark
+    gtk = {
+      enable = lib.mkDefault true;
+      theme = lib.mkDefault {
+        name = "Adwaita-dark";
+        package = pkgs.gnome-themes-extra;
+      };
+      iconTheme = lib.mkDefault {
+        name = "Adwaita";
+        package = pkgs.adwaita-icon-theme;
+      };
+    };
+
+    # Qt theming - Use GTK theme for consistency
+    qt = {
+      enable = lib.mkDefault true;
+      platformTheme.name = lib.mkDefault "gtk";
+      style.name = lib.mkDefault "adwaita-dark";
+    };
+
+    # XDG user directories for desktop environments
+    xdg.userDirs = {
+      enable = true;
+      createDirectories = true;
+    };
+  };
+}

modules/nixos/fonts.nix

@@ -0,0 +1,30 @@
+{ lib, pkgs, ... }: {
+  fonts = {
+    enableDefaultPackages = lib.mkDefault true;
+
+    packages = with pkgs; [
+      # Nerd Fonts for terminal icons
+      (nerdfonts.override { fonts = [ "FiraCode" "JetBrainsMono" "Iosevka" ]; })
+
+      # Core fonts
+      noto-fonts
+      noto-fonts-cjk
+      noto-fonts-emoji
+      liberation_ttf
+
+      # Code fonts
+      fira-code
+      jetbrains-mono
+    ];
+
+    fontconfig = {
+      enable = lib.mkDefault true;
+      defaultFonts = {
+        monospace = [ "JetBrains Mono" "FiraCode Nerd Font" ];
+        sansSerif = [ "Noto Sans" ];
+        serif = [ "Noto Serif" ];
+        emoji = [ "Noto Color Emoji" ];
+      };
+    };
+  };
+}

modules/nixos/graphics.nix

@@ -0,0 +1,21 @@
+{ lib, pkgs, ... }: {
+  # Hardware acceleration (OpenGL/Vulkan)
+  hardware.graphics = {
+    enable = lib.mkDefault true;
+    enable32Bit = lib.mkDefault true; # For 32-bit games/apps
+
+    extraPackages = with pkgs; [
+      # Common drivers (expand based on your hardware)
+      mesa.drivers
+      vulkan-validation-layers
+      vulkan-tools
+
+      # Intel-specific (comment out if not using Intel)
+      intel-media-driver
+      intel-vaapi-driver
+
+      # AMD-specific (comment out if not using AMD)
+      # rocmPackages.clr.icd
+    ];
+  };
+}

modules/nixos/home/default.nix

@@ -1,3 +1,18 @@
 { config, pkgs, lib, ... }: {
-  imports = [ ../../home/rsydn/base.nix ../../home/rsydn/shell/fish.nix ];
+  # Minimal CLI-only Home Manager configuration
+  # Used for servers, VMs, and headless systems
+  # Desktop configs are handled directly in nixos/desktops/* modules
+
+  imports = [
+    ../../home/rsydn/base.nix # Base CLI tools (git, tmux, etc.)
+    ../../home/rsydn/shell/fish.nix # Shell configuration
+    ../../home/rsydn/shell/nushell.nix # Secondary Nushell setup
+  ];
+
+  config.programs.tmux.extraConfig = lib.mkAfter ''
+    # Prefer fish for interactive sessions; launch Nushell on demand.
+    set -g default-shell "${config.home.profileDirectory}/bin/fish"
+    set -g default-command "${config.home.profileDirectory}/bin/fish --login"
+    bind-key C-n new-window -n nushell "${config.home.profileDirectory}/bin/nu --login"
+  '';
 }

modules/nixos/hosts/desktop.nix

@@ -0,0 +1,48 @@
+{ lib, pkgs, ... }:
+let
+  hardwareConfigPath = builtins.toString ./.
+    + "/../desktops/hardware-configuration.nix";
+  hardwareModule = if builtins.pathExists hardwareConfigPath then
+    import hardwareConfigPath
+  else
+    (_: { });
+in {
+  # Unified desktop configuration for gaming and development
+  # Includes both KDE Plasma and Hyprland - switch at login screen
+
+  # Import hardware and desktop configurations
+  imports = [
+    # Hardware
+    hardwareModule
+
+    # Audio & Graphics
+    ../audio.nix
+    ../graphics.nix
+
+    # Desktop Environments
+    ../desktops/plasma.nix # KDE Plasma (for gaming)
+    ../desktops/hyprland # Hyprland (for development)
+
+    # Desktop Apps & Theme
+    ../desktops/apps/browsers.nix
+    ../desktops/apps/terminals.nix
+    ../desktops/themes/catppuccin.nix # Or use themes/default.nix for Adwaita
+
+    # Gaming & Features
+    ../desktops/gaming.nix
+    ../bluetooth.nix
+  ];
+
+  # Boot configuration with CachyOS LTS kernel
+  boot = {
+    loader.systemd-boot.enable = true;
+    loader.efi.canTouchEfiVariables = true;
+    kernelPackages = pkgs.linuxPackages_cachyos-lts;
+  };
+
+  # Hostname
+  networking.hostName = "desktop";
+
+  # This value determines the NixOS release compatibility
+  system.stateVersion = "24.05";
+}

modules/nixos/hosts/dev-vm.nix

@@ -14,6 +14,7 @@
   };
 
   environment.systemPackages = with pkgs; [
+    # Core utilities
     coreutils
     ast-grep
     ripgrep
@@ -21,12 +22,30 @@
     tree
     zip
     unzip
-    htop
     jq
     psmisc # provides killall and friends
     gh
     tree-sitter
+
+    # System monitoring & debugging tools
+    htop # Process viewer
+    iotop # I/O monitoring
+    lsof # List open files
+    strace # System call tracing
+    ltrace # Library call tracing
+    gdb # GNU debugger
+    tcpdump # Network packet analyzer
+    ncdu # Disk usage analyzer
   ];
 
+  services.qemuGuest.enable = true;
+
+  services.openssh.openFirewall = false;
+
+  networking.firewall = {
+    allowedTCPPorts = [ ];
+    interfaces."tailscale0".allowedTCPPorts = [ 22 ];
+  };
+
   imports = [ ../virtualization.nix ];
 }

modules/nixos/system.nix

@@ -1,8 +1,10 @@
-{ lib, ... }: {
+{ lib, user, ... }: {
   imports = [ ./users.nix ./network.nix ./ssh.nix ./containerization.nix ];
 
   nix = {
     settings.auto-optimise-store = lib.mkDefault true;
+    settings.experimental-features = lib.mkDefault [ "nix-command" "flakes" ];
+    settings.trusted-users = lib.mkDefault [ "root" user ];
     optimise.automatic = lib.mkDefault true;
     gc = {
       automatic = lib.mkDefault true;