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diff --git a/dom0/system-laptop.scm b/dom0/system-laptop.scm
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+;; Modules to import to access variables used.
+(define-module (dom0 system)
+  #:use-module (gnu)
+  #:use-module (gnu services guix)
+  #:use-module (nongnu packages linux)
+  #:use-module (nongnu system linux-initrd)
+  #:use-module (nongnu packages nvidia)
+  #:use-module (nongnu services nvidia)
+  #:use-module (dom0 home))
+
+(use-service-modules linux guix desktop pm audio virtualization 
+		     networking dbus xorg avahi spice)
+(use-package-modules linux audio libusb wm fonts
+		     freedesktop vim cryptsetup version-control)
+
+(operating-system
+  (locale "en_GB.utf8")
+  (timezone "Europe/London")
+  (keyboard-layout (keyboard-layout "gb"))
+  (host-name "cc-lt")
+
+  ;; Users ('root' is implicit).
+  (users (cons* (user-account
+                  (name "dom0")
+                  (comment "dom0")
+                  (group "users")
+                  (home-directory "/home/dom0")
+                  (supplementary-groups '("wheel" "libvirt" "kvm"
+					  "netdev" "audio" "video")))
+                %base-user-accounts))
+
+  (bootloader (bootloader-configuration
+		(bootloader grub-efi-bootloader)
+		(targets (list "/boot/efi"))
+		(keyboard-layout keyboard-layout)))
+
+  ;; replace post-install
+  (swap-devices (list (swap-space
+			(target (uuid
+				  "ffbee008-d95e-4fdd-87ad-6148f38f22fe")))))
+  ;; luks setup - uncomment post-install
+  ;; and provide source UUID once known
+  (mapped-devices (list (mapped-device
+  			  (source (uuid "0c5d284e-e0c7-4dc3-bbca-f82ee6bb82e3"))
+  			  (target "system-root")
+  			  (type luks-device-mapping))))
+
+
+  ;; List of file systems to mount
+  ;; Run 'blkid' for UUIDs.
+  ;; Will change after install
+  (file-systems (cons* (file-system
+                         (mount-point "/boot/efi")
+                         (device (uuid "6919-B0C9"
+                                       'fat32))
+                         (type "vfat"))
+                       (file-system
+                         (mount-point "/")
+                         (device (uuid
+                                  "91be6346-0d17-4c4c-bca4-d08c18afe045"
+                                  'ext4))
+                         (type "ext4")) %base-file-systems))
+
+  ;; Non-free
+  (kernel linux)
+  (kernel-arguments '("modprobe.blacklist=noveau"
+		      ;"nvidia_drm.modeset=1"
+		      "quiet"))
+  (firmware (list linux-firmware))
+  (initrd microcode-initrd)
+
+  ;; Services (system-wide)
+  (services (append
+	      (modify-services %base-services
+			       (delete login-service-type)
+			       (delete mingetty-service-type)
+			       (delete console-font-service-type)
+			       ;; Add non-free substitutes
+			       (guix-service-type
+				 config =>
+				 (guix-configuration
+				   (inherit config)
+				   (substitute-urls
+				     (append (list "https://substitutes.nonguix.org")
+					     %default-substitute-urls))
+				     (authorized-keys
+				       (append (list (local-file "files/nonguix-signing-key.pub"))
+					       %default-authorized-guix-keys)))))
+	      (list 
+	      ;; NVIDIA
+	      ;(service nvidia-service-type)
+              ;(service kernel-module-loader-service-type 
+		       ;'("nvidia"))
+	      ;; systemd dependencies
+	      (service elogind-service-type)
+
+	      ;; spice for VMs
+	      (service spice-vdagent-service-type)
+
+	      ;; PAM and login
+	      (service greetd-service-type
+		       (greetd-configuration
+			 (greeter-supplementary-groups (list "video" "input"))
+                         (terminals
+			   (list
+			     (greetd-terminal-configuration
+			       (terminal-vt "1")
+			       (terminal-switch #t))
+			     (greetd-terminal-configuration (terminal-vt "2"))
+			     (greetd-terminal-configuration (terminal-vt "3"))))))
+
+	      (service console-font-service-type
+		       (map (lambda (tty)
+			    (cons tty (file-append
+					font-terminus
+					"/share/consolefonts/ter-132n")))
+			    '("tty1" "tty2" "tty3")))
+
+	      (service screen-locker-service-type
+		       (screen-locker-configuration
+			 (name "swaylock")
+			 (program (file-append swaylock "/bin/swaylock"))
+			 (using-pam? #t)
+			 (using-setuid? #t)))
+
+	      ;; Networking
+	      (service network-manager-service-type)
+	      (service wpa-supplicant-service-type)
+	      (service modem-manager-service-type)
+	      
+	      ;; dbus
+	      (service avahi-service-type)
+	      (service udisks-service-type)
+	      (service accountsservice-service-type)
+	      (service colord-service-type)
+	      (service polkit-service-type)
+	      (service dbus-root-service-type)
+
+	      ;; Cleanup stayle font cache
+              fontconfig-file-system-service
+
+	      ;; Power and thermals
+	      (service thermald-service-type)
+	      (service power-profiles-daemon-service-type)
+
+	      ;; Xwayland
+	      (service x11-socket-directory-service-type)
+
+	      ;; Time
+	      (service ntp-service-type)
+
+	      ;; Virtualization
+	      (service libvirt-service-type)
+	      (service virtlog-service-type)
+	      
+	      ;; udev
+	      (udev-rules-service 'pipewire-add-udev-rules pipewire)
+	      
+	      ;; dom0 home
+	      (service guix-home-service-type
+		       `(("dom0" ,dom0-home-environment))))))
+
+  ;; Packages (system-wide) 
+  (packages (cons* vim
+		   git
+		   cryptsetup
+		   strace
+		   %base-packages)))