GUIX System Configuration

Modules
- Service Modules
- Package Modules
Configuration Definitions
Operating System

  (org-babel-lob-ingest "./library.org")

Modules

gnu
gnu image
gnu services authentication
gnu services base
gnu services dbus
gnu services desktop
gnu services linux
gnu services networking
gnu services pm
gnu services virtualization
gnu services xorg
gnu system nss

Service Modules

desktop
xorg

Package Modules

bootloaders
certs
emacs
emacs-xyz
fonts
readline
terminals
version-control
wm
xorg

Configuration Definitions

File System

The variable %local-filesystem extracts the file system definitions from the installer-provided config.scm file.

  (define %local-filesystem
    (call-with-input-file "/etc/config.scm"
      (lambda (port)
        (read port)
        (read port)
        (eval (cadar (last-pair (read port)))
              (interaction-environment)))))

As a sibling to the former, the variable %local-swap does the same with the swap partition.

  (define %local-swap
    (call-with-input-file "/etc/config.scm"
      (lambda (port)
        (read port)
        (read port)
        (let* ((os-list (read port))
               (os-list-length (length os-list)))
          (eval
           (cdr
            (list-ref os-list
                      (- os-list-length 2)))
           (interaction-environment))))))

Packages

emacs
emacs-desktop-environment
font-terminus
git
nss-certs
readline
swayfx

  (packages
   (append
    <<org-to-scheme-sym-list(input=root-packages)>>
    %base-packages))

Services

Simple Services

These services are unmodified, or have just few settings.

Service	Options
tlp	()
thermald	((adaptive? t))
bluetooth	()
earlyoom	((minimum-available-memory 5) (minimum-free-swap 5))
inputattach	()
libvirt	((unix-sock-group "libvirt"))
fstrim	()
fprintd	()

Greeter Service

greetd is a broken mess, yet here we are.

  (service greetd-service-type
           (greetd-configuration
            (greeter-supplementary-groups
             (list "video" "input"))
            (terminals
             (list
              (greetd-terminal-configuration
               (terminal-vt "7")
               (terminal-switch #t)
               (default-session-command
                 (greetd-wlgreet-session
                  (command
                   (file-append swayfx "/bin/sway")))))
              (greetd-terminal-configuration
               (terminal-vt "8"))))))

Screen Locker Service

For some reason, this service runs on root level for Guix.

  (service screen-locker-service-type
           (screen-locker-configuration
            (name "swaylock")
            (program
             (file-append swaylock-effects "/bin/swaylock"))
            (using-setuid? #f)))

Operating System

This is the full operating system specification.

  (operating-system
   (host-name "ziltis-machine")
   (timezone "Europe/Berlin")
   (locale "de_DE.utf8")
   (keyboard-layout
    (keyboard-layout "de" #:options '("caps:swapescape")))
   (bootloader
    (bootloader-configuration
     (bootloader grup-efi-bootloader)
     (targets
      '("/boot/efi"))
     (keyboard-layout keyboard-layout)))
   (file-systems %local-filesystem)
   (swap-devices %local-swap)
   (users
    (cons*
     (user-account
      (name "zilti")
      (group "users")
      (supplementary-groups
       '("wheel" "netdev" "audio" "video" "libvirt")))
     %base-user-accounts))
    <<root-package-block>>
    <<root-services-block>>
   (name-service-switch %mdns-host-lookup-nss))

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