Use the latest kernel

this script builds and launches vm with configuration,
and removes the img after closing vm

note that you shulre remove from configuration.nix device specific entries (like hdds, network adapters)

.gitignore

@@ -1,3 +1,4 @@
 device-configuration.nix
 hardware-configuration.nix
 result
+*.qcow2

configuration.nix

@@ -28,6 +28,9 @@
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
+  # kernel
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
 
   # Enable networking

desktop/gnome.nix

@@ -4,7 +4,7 @@ let
   unstable = import <nixos-unstable> {};
 in
 {
-  config = {
+  config = rec {
     services.xserver.enable = true;
     services.xserver.desktopManager.gnome.enable = true;
     services.xserver.displayManager.gdm = {
@@ -15,10 +15,151 @@ in
 
     # environment.sessionVariables.NIXOS_OZONE_WL = "1";
 
-    services.xserver.desktopManager.gnome.extraGSettingsOverrides = ''
-      [org.gnome.SessionManager]
-      logout-prompt=false
-    '';
+    programs.dconf.profiles.user.databases = [{
+      settings = with lib.gvariant; {
+        "org/gnome/desktop/interface" = {
+          clock-show-date=true;
+          clock-show-seconds=true;
+          clock-show-weekday=true;
+          color-scheme="prefer-dark";
+        };
+
+        "org/gnome/desktop/media-handling" = {
+          automount=false;
+        };
+
+        "org/gnome/desktop/peripherals/mouse" = {
+          accel-profile="flat";
+        };
+
+        "org/gnome/desktop/sound" = {
+          allow-volume-above-100-percent=true;
+        };
+
+        "org/gnome/mutter" = {
+          dynamic-workspaces=true;
+          workspaces-only-on-primary=true;
+        };
+
+        "org/gnome/SessionManager" = {
+          logout-prompt=false;
+        };
+
+        "org/gnome/settings-daemon/plugins/power" = {
+          power-button-action="notning";
+          sleep-inactive-ac-type="nothing";
+        };
+
+        "org/gnome/shell" = {
+          enabled-extensions=[
+            "drive-menu@gnome-shell-extensions.gcampax.github.com"
+            "pop-shell@system76.com"
+            "workspace-indicator@gnome-shell-extensions.gcampax.github.com"
+            "Vitals@CoreCoding.com"
+            "trayIconsReloaded@selfmade.pl"
+            "places-menu@gnome-shell-extensions.gcampax.github.com"
+            "apps-menu@gnome-shell-extensions.gcampax.github.com"
+            "top-bar-organizer@julian.gse.jsts.xyz"
+            "color-picker@tuberry"
+          ];
+        };
+
+        "org/gnome/shell/app-switcher" = {
+          current-workspace-only=false;
+        };
+
+        "org/gnome/shell/extensions/color-picker" = {
+          color-picker-shortcut=["<Super><Alt>c"];
+          enable-shortcut=true;
+          enable-systray=false;
+          menu-key="";
+          notify-style=mkUint32 1;
+          preview-style=mkUint32 0;
+        };
+
+        "org/gnome/shell/extensions/pop-shell" = {
+          active-hint=true;
+          active-hint-border-radius=mkUint32 1;
+          gap-inner=mkUint32 2;
+          gap-outer=mkUint32 1;
+          show-skip-taskbar=true;
+          show-title=true;
+          smart-gaps=false;
+          snap-to-grid=false;
+          tile-by-default=true;
+        };
+
+        "org/gnome/shell/extensions/top-bar-organizer" = {
+          center-box-order=["dateMenu"];
+          left-box-order=["activities" "apps-menu" "places-menu" "vitalsMenu"];
+          right-box-order=["TrayIconsReloaded" "workspace-indicator" "pop-shell" "color-picker@tuberry" "drive-menu" "screenRecording" "screenSharing" "dwellClick" "a11y" "keyboard" "quickSettings"];
+        };
+
+        "org/gnome/shell/extensions/trayIconsReloaded" = {
+          icon-brightness=mkInt32 0;
+          icon-contrast=mkInt32 0;
+          icon-margin-horizontal=mkInt32 0;
+          icon-margin-vertical=mkInt32 0;
+          icon-padding-horizontal=mkInt32 4;
+          icon-padding-vertical=mkInt32 0;
+          icon-saturation=mkInt32 0;
+          icon-size=mkInt32 16;
+          icons-limit=mkInt32 5;
+          invoke-to-workspace=true;
+          position-weight=mkInt32 0;
+          tray-margin-left=mkInt32 0;
+          tray-margin-right=mkInt32 0;
+        };
+
+        "org/gnome/shell/extensions/vitals" = {
+          hide-icons=false;
+          hot-sensors=["_processor_usage_" "_memory_allocated_"];
+          memory-measurement=mkInt32 1;
+          update-time=mkInt32 2;
+          use-higher-precision=true;
+        };
+
+        "org/gnome/shell/keybindings" = {
+          show-screenshot-ui=["Print" "<Super><Shift>S"];
+        };
+
+        "org/gnome/desktop/default-applications/terminal" =
+        if builtins.elem pkgs.kitty config.environment.systemPackages then {
+          exec = "kitty";
+          exec-arg = "";
+        } else null;
+
+        "org/gnome/settings-daemon/plugins/media-keys" = {
+          custom-keybindings = [
+            (
+              if builtins.elem pkgs.kitty config.environment.systemPackages then
+                "org/gnome/settings-daemon/plugins/media-keys/custom-keybinding/custom0"
+              else null
+            )
+          ];
+          help = mkEmptyArray "s";
+          screensaver = ["<Control><Super>l"];
+        };
+
+        "org/gnome/settings-daemon/plugins/media-keys/custom-keybinding/custom0" =
+        if builtins.elem pkgs.kitty config.environment.systemPackages then {
+          binding="<Control><Alt>t";
+          command="kitty";
+          name="Terminal";
+        } else null;
+
+      };
+    }];
+
+    programs.dconf.profiles.gdm.databases = with builtins.elemAt programs.dconf.profiles.user.databases 0; [{
+      settings = {
+        "org/gnome/desktop/interface" = settings."org/gnome/desktop/interface";
+        "org/gnome/desktop/peripherals/mouse" = settings."org/gnome/desktop/peripherals/mouse";
+        "org/gnome/desktop/sound" = settings."org/gnome/desktop/sound";
+        "org/gnome/settings-daemon/plugins/power" = settings."org/gnome/settings-daemon/plugins/power";
+        "org/gnome/shell/keybindings" = settings."org/gnome/shell/keybindings";
+      };
+    }];
 
     environment.systemPackages = with pkgs; [
       gnomeExtensions.pop-shell

nixos-rebuild.sh

@@ -1,2 +1 @@
-NIXOS_CONFIG="$(pwd)/configuration.nix"
-nixos-rebuild $@
+NIXOS_CONFIG="$(pwd)/configuration.nix" nixos-rebuild $@

vm.sh

@@ -0,0 +1 @@
+nix-build '<nixpkgs/nixos>' -A vm -I nixpkgs=channel:nixos-23.11 -I nixos-config=./configuration.nix && $(ls ./result/bin/run-*) && rm *.qcow2