Replace gnome with xfce

nixos/os/configuration.nix

@@ -18,8 +18,6 @@ in
   boot.kernelPackages = pkgs.linuxPackages_6_13;
   boot.kernelModules = [ "i915" ];
 
-
-
   boot.kernelParams = [
     # Realtime Preemption
     "preempt=full"
@@ -70,10 +68,56 @@ in
   boot.kernel.sysctl = {
     "kernel.panic_on_oops" = 1;          # Reboot on kernel oops
     "kernel.panic" = 10;                 # Reboot after 10 seconds on panic
-    "vm.swappiness" = 10;                # Reduce swap usage
+    # "vm.swappiness" = 10;                # Reduce swap usage
     "kernel.sysrq" = 1;                  # Enable SysRq for emergency control
   };
 
+  # Create a 6 GiB swapfile at /swapfile
+  systemd.tmpfiles.rules = [
+    # Ensure parent directory exists with proper perms (root dir already exists)
+    # Create the swapfile with exact size: 6G
+    "f /swapfile - - - - -"
+  ];
+
+  # Custom service to allocate and format the swapfile early in boot
+  systemd.services.create-swapfile = {
+    description = "Create and enable /swapfile swap";
+    wants = [ "local-fs.target" ];
+    before = [ "swap.target" ];
+    path = [ pkgs.coreutils pkgs.util-linux pkgs.systemd ];
+    serviceConfig = {
+      Type = "oneshot";
+      RemainAfterExit = "yes";
+    };
+    script = ''
+      set -e
+      # If swapfile already exists and is a swap, enable it
+      if swapon --show=NAME | grep -q '^/swapfile$'; then
+        exit 0
+      fi
+
+      # If file exists but not swap, remove it to recreate
+      if [ -f /swapfile ]; then
+        swapuuid=$(/sbin/blkid -o value -s UUID /swapfile 2>/dev/null || true)
+        if [ -n "$swapuuid" ]; then
+          swapoff /swapfile || true
+        fi
+        rm -f /swapfile
+      fi
+
+      # Allocate 6 GiB (sparse then fallocate to ensure space)
+      fallocate -l 6G /swapfile || dd if=/dev/zero of=/swapfile bs=1M count=6144
+
+      # Set strict permissions
+      chown 0:0 /swapfile
+      chmod 600 /swapfile
+
+      # Setup swap space and enable it
+      mkswap /swapfile
+      swapon /swapfile
+    '';
+  };
+
   nix = {
     package = pkgs.nixVersions.stable;
     extraOptions = ''
@@ -139,15 +183,14 @@ in
   };
 
   # Enable the X11 windowing system.
-  services.xserver.enable = true;
-  #services.xserver.videoDrivers = [ "intel" ];
-  services.xserver.displayManager.gdm = {
+  services.xserver = {
     enable = true;
-    autoSuspend = false;
-    wayland = true;
+    desktopManager = {
+      xterm.enable = false;
+      xfce.enable = true;
+    };
   };
-
-  services.xserver.desktopManager.gnome.enable = true;
+  services.displayManager.defaultSession = "xfce";
 
   # Disable sleep/suspend
   systemd.targets.sleep.enable = false;
@@ -226,19 +269,15 @@ in
   users.users.qitech = {
     isNormalUser = true;
     description = "QiTech HMI";
-    extraGroups = [ "networkmanager" "wheel" "realtime" "wireshark" ];
+    extraGroups = [ "networkmanager" "wheel" "realtime" "wireshark" "dailout" ];
     packages = with pkgs; [ ];
   };
 
   security.sudo.wheelNeedsPassword = false;
 
-  # Enable automatic login for the user.
-  services.displayManager.autoLogin.enable = true;
-  services.displayManager.autoLogin.user = "qitech";
-
-  # Workaround for GNOME autologin: https://github.com/NixOS/nixpkgs/issues/103746#issuecomment-945091229
-  systemd.services."getty@tty1".enable = false;
-  systemd.services."autovt@tty1".enable = false;
+  # Enable automatic login for the user. (Disabled for rdp to work)
+  # services.displayManager.autoLogin.enable = true;
+  # services.displayManager.autoLogin.user = "qitech";
 
   # Install firefox.
   programs.firefox.enable = true;
@@ -247,53 +286,19 @@ in
   programs.wireshark.enable = true;
   programs.wireshark.package = pkgs.wireshark;
 
-  # List packages installed in system profile. To search, run:
-  # $ nix search wget
   environment.systemPackages = with pkgs; [
-    #  vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
-    #  wget
-    gnome-tweaks
-    gnome-extension-manager
-    gnomeExtensions.dash-to-dock
-    # Extension to disable activities overview on login
-    gnomeExtensions.no-overview
+    vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+    wget
     git
     pkgs.qitechPackages.electron
     htop
     wireshark
     pciutils
-    neofetch
   ];
 
   xdg.portal.enable = true;
   xdg.portal.extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
 
-  environment.gnome.excludePackages = (with pkgs; [
-    atomix # puzzle game
-    baobab # disk usage analyzer
-    cheese # webcam tool
-    eog # image viewer
-    epiphany # web browser
-    evince # document viewer
-    geary # email reader
-    simple-scan # document scanner
-    gnome-characters
-    gnome-music
-    gnome-photos
-    gnome-terminal
-    gnome-tour
-    gnome-calculator
-    gnome-calendar
-    gnome-contacts
-    gnome-maps
-    gnome-weather
-    hitori # sudoku game
-    iagno # go game
-    tali # poker game
-    totem # video player
-    seahorse # password manager
-  ]);
-
   # Set system wide env variables
   environment.variables = {
     QITECH_OS = "true";
@@ -317,7 +322,7 @@ in
   # List services that you want to enable:
 
   # Enable the OpenSSH daemon.
-  # services.openssh.enable = true;
+  services.openssh.enable = true;
 
   # Open ports in the firewall.
   # networking.firewall.allowedTCPPorts = [ ... ];
@@ -325,12 +330,23 @@ in
   # Or disable the firewall altogether.
   # networking.firewall.enable = false;
 
+  services.xrdp.enable = true;
+
+  # Use the GNOME Wayland session
+  services.xrdp.defaultWindowManager = "${pkgs.gnome-session}/bin/gnome-session";
+  
+  # XRDP needs the GNOME remote desktop backend to function
+  services.gnome.gnome-remote-desktop.enable = true;
+  
+  # Open the default RDP port (3389)
+  services.xrdp.openFirewall = true;
+
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave
   # this value at the release version of the first install of this system.
   # Before changing this value read the documentation for this option
   # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
-  system.stateVersion = "24.11"; # Did you read the comment?
+  system.stateVersion = "25.11"; # Did you read the comment?
 
 }

nixos/os/home.nix

@@ -1,121 +1,87 @@
 { config, pkgs, lib, ... }: {
-  home.stateVersion = "24.11";
+  home.stateVersion = "25.11";
 
   home.packages = with pkgs; [
     pkgs.qitechPackages.electron
   ];
 
   # Add autostart entry for the QiTech electron app
-  xdg.configFile."autostart/de.qitech.control-electron.desktop".text = ''
-    [Desktop Entry]
-    Type=Application
-    Name=QiTech Control
-    Comment=QiTech Control
-    Exec=qitech-control-electron
-    Icon=de.qitech.control-electron
-    Terminal=false
-    StartupWMClass=QiTech Control
-    X-GNOME-Autostart-enabled=true
-    X-GNOME-Autostart-Phase=Applications
-  '';
-  
-  dconf.settings = {
-    # Set GNOME wallpaper
-    "org/gnome/desktop/background" = {
-      picture-uri = "https://i.postimg.cc/Z5XJtNMW/qitech-industries-wallpaper.jpg";
-      picture-uri-dark = "https://i.postimg.cc/Z5XJtNMW/qitech-industries-wallpaper.jpg";
-      picture-options = "zoom";
+  # xdg.configFile."autostart/de.qitech.control-electron.desktop".text = ''
+  #   [Desktop Entry]
+  #   Type=Application
+  #   Name=QiTech Control
+  #   Comment=QiTech Control
+  #   Exec=qitech-control-electron
+  #   Icon=de.qitech.control-electron
+  #   Terminal=false
+  #   StartupWMClass=QiTech Control
+  #   X-GNOME-Autostart-enabled=true
+  #   X-GNOME-Autostart-Phase=Applications
+  # '';
+
+  # XFCE desktop environment settings
+  xfconf.settings = {
+    "xfce4-desktop" = {
+      # Set wallpaper for the primary display
+      "backdrop/screen0/monitor0/image-path" = "https://i.postimg.cc/Z5XJtNMW/qitech-industries-wallpaper.jpg";
+      "backdrop/screen0/monitor0/image-show" = true;
+      "backdrop/screen0/monitor0/image-style" = 5; # 5 = Zoomed (fit to screen)
     };
 
-    # Enable on-screen keyboard 
-    "org/gnome/desktop/a11y/applications" = {
-      screen-keyboard-enabled = true;
-    };
-    
-    # Configure on-screen keyboard (optional)
-    "org/gnome/desktop/a11y" = {
-      always-show-universal-access-status = true;
+    "xfce4-power-manager" = {
+      # Disable automatic suspend, dimming, and screen blank
+      "inactivity-on-ac" = 14; # 14 = Do nothing
+      "inactivity-on-battery" = 14;
+      "blank-on-ac" = 0;
+      "blank-on-battery" = 0;
+      "dpms-enabled" = false;
+      "brightness-on-ac" = 100;
+      "brightness-on-battery" = 100;
     };
 
-    # Disable screen blanking/timeout
-    "org/gnome/desktop/session" = {
-      idle-delay = lib.gvariant.mkUint32 0;  # Use uint32 format to ensure proper type
-    };
-    
-  # Disable automatic suspend and screen dimming
-  "org/gnome/settings-daemon/plugins/power" = {
-    sleep-inactive-ac-type = "nothing";
-    sleep-inactive-battery-type = "nothing";
-    power-button-action = "nothing";
-    idle-dim = false;
-    sleep-inactive-ac-timeout = lib.gvariant.mkUint32 0;
-    sleep-inactive-battery-timeout = lib.gvariant.mkUint32 0;
-    ambient-enabled = false;
-  };
-
-  # Disable screen lock
-  "org/gnome/desktop/screensaver" = {
-    lock-enabled = false;
-    idle-activation-enabled = false;
-    lock-delay = lib.gvariant.mkUint32 0;
-  };
-
-    # Interface settings with hot-corners disabled
-    "org/gnome/desktop/interface" = {
-      enable-animations = true;
-      show-battery-percentage = true;
-      enable-hot-corners = false;  # Prevent activities from opening with hot corners
+    "xfce4-session" = {
+      # Disable session auto lock
+      "lock-screen-suspend-hibernate" = false;
+      "logout-prompt" = true;
     };
 
-    # Show dock on all monitors and always visible
-    "org/gnome/shell/extensions/dash-to-dock" = {
-      dock-position = "BOTTOM";
-      extend-height = false;
-      dock-fixed = true;
-      autohide = false;
-      intellihide = false;
-      multi-monitor = true;  # Show dock on all monitors
-      isolate-monitors = false;  # Don't isolate workspaces per monitor
-      isolate-workspaces = false;  # Don't isolate dock content per workspace
-    };
-    
-    # Configure display settings
-    "org/gnome/mutter" = {
-      workspaces-only-on-primary = false;  # Show workspaces on all monitors
-      dynamic-workspaces = false;  # Disable dynamic workspaces
-    };
-    
-    "org/gnome/desktop/wm/preferences" = {
-      num-workspaces = 1;  # Set a fixed number of workspaces (default: 4)
+    "xfce4-screensaver" = {
+      "lock-enabled" = false;
+      "mode" = 0; # 0 = Blank, 1 = Random, 2 = Single image
     };
 
-    "org/gnome/desktop/lockdown" = {
-      disable-lock-screen = true;  # Disable lock screen
-      disable-log-out = false;  # Enable logout option (To be able to reboot manually)
-      disable-user-switching = true;  # Disable user switching
-      disable-screensaver = true;  # Disable screensaver
-      user-adminstration-disabled = true;  # Disable user administration
+    "xfce4-panel" = {
+      # Always show panel, don’t autohide
+      "autohide-behavior" = 0; # 0 = Never autohide
+      "show-window-list" = true;
+      "show-desktop-button" = true;
     };
-    
-    "org/gnome/shell" = {
-      always-show-log-out = true;
-      enabled-extensions = [
-        "dash-to-dock@micxgx.gmail.com"
-        "no-overview@fthx"
+
+    "xfwm4" = {
+      # Window manager preferences
+      "workspace_count" = 1;
+      "wrap_workspaces" = false;
+      "wrap_layout" = false;
+      "cycle_workspaces" = false;
+      "workspace_names" = [ "Main" ];
+    };
+
+    "xfce4-keyboard-shortcuts" = {
+      # Disable hot corners or any special shortcuts
+      "/commands/custom/<Super>p" = ""; # Example of unbinding an unwanted shortcut
+    };
+
+    "xfce4-panel/launcher" = {
+      # Optional: Pin favorite apps (replace with your .desktop entries)
+      "items" = [
+        "de.qitech.control-electron.desktop"
       ];
-      favorite-apps = [
-        "de.qitech.control-electron.desktop"  # The desktop entry from the QiTech app
-        "org.gnome.Settings.desktop"
-      ];
-      disable-user-extensions = false;
-      disable-extension-version-validation = true;
-      welcome-dialog-last-shown-version = "999.999.999";  # Prevents welcome screen
-      looking-glass-history = [];
     };
-    
-    # Disable automatic Activities overview on startup
-    "org/gnome/shell/extensions/ding" = {
-      start-corner = "top-left";  # This can help with preventing Activities from opening
+
+    "xfce4-notifyd" = {
+      # Enable notifications, animations
+      "do-slideout" = true;
     };
   };
+
 }

nixos/packages/electron.nix

@@ -121,7 +121,6 @@ installPhase = ''
     Terminal=false
     StartupWMClass=QiTech Control
     Categories=Development;Engineering;
-    X-GNOME-UsesNotifications=true
     EOF
   '';