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;; Modules to import to access variables used.
(define-module (pwn system)
  #:use-module (gnu)
  #:use-module (gnu services guix)
  #:use-module (guix transformations)
  #:use-module (nongnu packages linux)
  #:use-module (nongnu system linux-initrd)
  #:use-module (pwn home))

(use-service-modules linux guix desktop pm audio virtualization 
		     networking dbus xorg avahi spice nix)
(use-package-modules linux audio libusb wm fonts virtualization
		     freedesktop vim security-token cryptsetup version-control package-management)

(define patch-libvirt
  (options->transformation
    '((with-patch . "libvirt=patches/libvirt-qemu-caps.patch"))))

(operating-system
  (locale "en_GB.utf8")
  (timezone "Europe/London")
  (keyboard-layout (keyboard-layout "gb"))
  (host-name "pwn")

  ;; Users ('root' is implicit).
  (users (cons* (user-account
                  (name "ET")
                  (comment "disposable machine")
		  (password (crypt "ET" "$6$abc"))
                  (group "users")
                  (home-directory "/home/home")
                  (supplementary-groups '("wheel" "plugdev" "netdev" "audio" "video")))
                %base-user-accounts))

  (bootloader (bootloader-configuration
                (bootloader grub-bootloader)
                (targets '("/dev/vda"))
                (terminal-outputs '(console))))

  (file-systems (cons (file-system
                        (mount-point "/")
                        (device "/dev/vda1")
                        (type "ext4"))
                      %base-file-systems))

  ;; Non-free
  (kernel linux)
  (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 
	      ;; systemd dependencies
	      (service elogind-service-type)

	      ;; Spice and Qemu for VMs
	      (service spice-vdagent-service-type)
	      (service qemu-guest-agent-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)
	      
	      ;; 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 stale font cache
              fontconfig-file-system-service

	      ;; Xwayland
	      (service x11-socket-directory-service-type)

	      ;; Time
	      (service ntp-service-type)
              
              ;; Virtualization
	      (service libvirt-service-type
		       (libvirt-configuration
			 (libvirt (patch-libvirt libvirt))))
	      (service virtlog-service-type)

	      ;; udev including yubikey
	      (udev-rules-service 'pipewire-add-udev-rules pipewire)
	      (udev-rules-service 'fido2 libfido2 #:groups '("plugdev"))
	      ;; pwn home
	      (service guix-home-service-type
		      `(("ET", pwn-home-environment))) 
	      (service nix-service-type))))

  ;; Packages (system-wide) 
  (packages (cons* vim
		   git
		   cryptsetup
		   strace
		   nix
		   %base-packages)))