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(use-modules (gnu))
(use-service-modules virtualization cups desktop networking ssh xorg)

(define rootfs
  (file-system
   (mount-point "/")
   (needed-for-boot? #t)
   (device "tmpfs")
   (type "tmpfs")
   (check? #f)))

(define gnufs
  (file-system
   (mount-point "/gnu")
   (needed-for-boot? #t)
   (create-mount-point? #t)
   (type "btrfs")
   (device (file-system-label "root"))
   (options "subvol=/gnu,compress=zstd,discard=async")))

(define persistfs
  (file-system
   (mount-point "/persist")
   (needed-for-boot? #t)
   (create-mount-point? #t)
   (type "btrfs")
   (device (file-system-label "root"))
   (options "subvol=/persist,compress=zstd,discard=async")))

(define etcfs
  (file-system
   (mount-point "/etc")
   (needed-for-boot? #t)
   (create-mount-point? #t)
   (type "btrfs")
   (device (file-system-label "root"))
   (options "subvol=/persist/etc,compress=zstd,discard=async")))

(define varfs
  (file-system
   (mount-point "/var")
   (needed-for-boot? #t)
   (create-mount-point? #t)
   (type "btrfs")
   (device (file-system-label "root"))
   (options "subvol=/persist/var,compress=zstd,discard=async")))

(define bootfs
  (file-system
   (mount-point "/boot")
   (create-mount-point? #t)
   (type "btrfs")
   (device (file-system-label "root"))
   (options "subvol=/persist/boot,compress=zstd,discard=async")))

(define homefs
  (file-system
   (mount-point "/home")
   (create-mount-point? #t)
   (type "btrfs")
   (device (file-system-label "root"))
   (options "subvol=/persist/home,compress=zstd,discard=async")))

(define my-file-systems
  (list

   rootfs
   gnufs
   persistfs

   etcfs
   varfs

   bootfs
   homefs

   (file-system
    (mount-point "/boot/efi")
    (create-mount-point? #t)
    (dependencies (list bootfs))
    (device (file-system-label "ESP"))
    (type "vfat"))

   (file-system
    (mount-point "/root")
    (create-mount-point? #t)
    (dependencies (list homefs))
    (type "none")
    (device "/home/root")
    (flags '(bind-mount)))

   (file-system
    (mount-point "/tmp")
    (create-mount-point? "1777")
    (device "tmpfs")
    (type "tmpfs")
    (flags '(no-suid no-dev))
    (check? #f))

   (file-system
    (mount-point "/var/guix/temproots")
    (create-mount-point? #t)
    (device "tmpfs")
    (type "tmpfs")
    (flags '(no-suid no-dev))
    (check? #f))))

(operating-system
 (locale "en_US.utf8")
 (timezone "America/New_York")
 (keyboard-layout (keyboard-layout "us" "altgr-intl"))
 (host-name "guixinit")

 (users
  (cons*
   (user-account
    (name "bjc")
    (comment "bjc")
    (group "users")
    (home-directory "/home/bjc")
    (supplementary-groups '("wheel" "netdev" "audio" "video")))
   %base-user-accounts))

 (services
  (append
   (list
    (service openssh-service-type)
    (service gnome-desktop-service-type)
    (set-xorg-configuration
     (xorg-configuration (keyboard-layout keyboard-layout))))
   %desktop-services))

 (bootloader
  (bootloader-configuration
   (bootloader grub-efi-bootloader)
   (targets (list "/boot/efi"))
   (keyboard-layout keyboard-layout)))

 (swap-devices '())

 (file-systems
  (append
   my-file-systems
   %base-file-systems)))