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#+title: Configuration of the Aisaka computer -*- mode: org -*-
#+startup: overview
#+property: header-args:scheme :noweb yes
#+property: header-args:scheme+ :noweb-prefix no

* TODO LIBREBOOT

The first layer of computing is the firmware.  The Lenovo Thinkpad X200 has
a free Libreboot firmware installed.  It is a good idea to keep it up to date.

** TODO Flashrom

Flashrom program is needed to write the computer firmware.  The
program needs a relaxed kernel security feature.

#+begin_src scheme :noweb-ref flashrom-package
  (service
   (service-type
    (name 'flashrom-package)
    (extensions
     `(,(service-extension home-profile-service-type
                           (lambda (_)
                             (map specification->package
                                  '("flashrom"))))))
    (description "Flashrom installation.")
    (default-value #f)))
#+end_src

* TODO File Systems

This system has a very simple file system - a boot partition, main partition
for everything else and swap.  The main partition is encrypted.

** Mapped Devices

Data encryption layer, password protected.  The LUKS encryption type is
used.

#+begin_src scheme :noweb-ref luks
  (mapped-device
   (source (uuid "887ac37f-2919-41a0-a62a-e1ff5ea2d6cc"))
   (target "aisaka-root")
   (type luks-device-mapping))
#+end_src

** File Systems

The data is split into an unencrypted boot partition and encrypted root
filesystem.

*** Root File System

The root filesystem is mounted on the encryption layer.  Its type is
BTRFS.

#+begin_src scheme :noweb-ref rootfs
  (file-system
   (mount-point "/")
   (device "/dev/mapper/aisaka-root")
   (type "btrfs")
   (dependencies mapped-devices))
#+end_src

*** Boot File System

The boot partition is on EXT4 filesystem.

#+begin_src scheme :noweb-ref bootfs
  (file-system
   (mount-point "/boot")
   (device (uuid "4f77b5fc-56ad-43ae-b6ec-e5adc8c48587"))
   (type "ext4"))
#+end_src

** Swap Devices

Swap takes half the storage space in order to facilitate edge cases of
memory without overprovisioning, as well as to prolog the lifetime of SSD.

#+begin_src scheme :noweb-ref swap
  (swap-space (target (uuid "73bed3f9-be07-40ad-a228-577cd24f2e1d")))
#+end_src

* TODO System Servers

** TODO Secure Shell

#+begin_src scheme :noweb-ref ssh-server :tangle services/ssh-server.scm
  (define-module (ssh-server)
    #:use-module (gnu)
    #:use-module (gnu home)
    #:use-module (gnu home services)
    #:use-module (gnu services ssh))

  <<ssh-service>>

  <<ssh-configuration>>
#+end_src

*** TODO SSH Installation

#+begin_src scheme :noweb-ref ssh-service
  (define-public ssh-service
    (service openssh-service-type))
#+end_src

*** TODO SSH Configuration

#+begin_src scheme :noweb-ref ssh-configuration
  (define-public ssh-configuration
    (simple-service 'ssh-configuration* home-files-service-type
		    `((".ssh/config" ,(local-file "../ssh.config")))))
#+end_src

* TODO Desktop Environment

Sway is the currently chosen operating environment.

** TODO Sway Window Manager

The Sway Window Manager consists of Sway packages and relevant configurations.

#+begin_src scheme :noweb-ref sway :tangle services/sway.scm
  (add-to-load-path "./services")

  (define-module (sway)
    #:use-module (gnu)
    #:use-module (gnu home)
    #:use-module (gnu home services)
    #:use-module (gnu home services shells))

  <<sway-packages>>

  <<sway-configuration>>
#+end_src

*** TODO Sway Installation

#+begin_src scheme :noweb-ref sway-packages
  (define-public sway-packages
    (service
     (service-type
      (name 'sway-packages)
      (extensions
       `(,(service-extension home-profile-service-type
			     (lambda (_)
			       (map specification->package
				    '("sway"
				      "waybar"))))))
      (description "Sway Window Manager installation.")
      (default-value #f))))
#+end_src

*** TODO Sway configuration

#+begin_src scheme :noweb-ref sway-configuration
  (define-public sway-configuration
    (simple-service 'configuration-files home-files-service-type
		    `((".config/sway/config" ,(local-file "../sway.config"))
		      (".config/waybar/config" ,(local-file "../waybar.config")))))
#+end_src

* imported configuration dump
** TODO System configuration

#+begin_src scheme :noweb-ref system-dump :tangle system-configuration.scm
  (add-to-load-path "./services")

  (define-module (aisaka-system-configuration)
    #:use-module (gnu)
    #:use-module (gnu packages cups)
    #:use-module (gnu packages finance)
    #:use-module (gnu services cups)
    #:use-module (gnu services configuration)
    #:use-module (gnu services desktop)
    #:use-module (gnu services networking)
    #:use-module (gnu services nix)
    #:use-module (gnu services ssh)
    #:use-module (gnu services xorg)
    #:use-module (ssh-server))

  (define keyboard-layout
    (keyboard-layout "pl"))

  (operating-system
   (locale "pl_PL.utf8")
   (timezone "Europe/Warsaw")
   (keyboard-layout keyboard-layout)
   (host-name "aisaka")
   (users (cons* (user-account (name "marek")
                               (comment "Marek Paśnikowski")
                               (group "users")
                               (home-directory "/home/marek")
                               (supplementary-groups '("audio"
                                                       "netdev"
                                                       "tor"
                                                       "video"
                                                       "wheel")))
                 %base-user-accounts))
   (packages (append (map (compose list
                                   specification->package+output)
                          '("netcat-openbsd"
                            "nix"
                            "nss-certs"
                            "ntfs-3g"
                            "trezord"
                            "trezord-udev-rules"))
                     %base-packages))
   (services (cons* ssh-service
                    (service cups-service-type
                             (cups-configuration (extensions `(,cups-filters
                                                               ,epson-inkjet-printer-escpr))
                                                 (web-interface? #t)))
                    (service gnome-desktop-service-type)
                    (service nix-service-type)
                    (service tor-service-type
                             (tor-configuration (config-file (local-file "torrc"))
                                                (control-socket? #t)))
                    (udev-rules-service 'trezord trezord-udev-rules)
                    (modify-services %desktop-services
                                     (elogind-service-type
                                      configuration =>
                                      (elogind-configuration
                                       (inherit configuration)
                                       (handle-lid-switch 'ignore)))
                                     ;; (delete gdm-service-type)
                                     )))
   (bootloader (bootloader-configuration (bootloader grub-bootloader)
                                         (targets '("/dev/sda"))
                                         (keyboard-layout keyboard-layout)))
   (swap-devices
    `(,<<swap>>))
   (mapped-devices
    `(,<<luks>>))
   (file-systems
    (append %base-file-systems
            `(,<<rootfs>>
              ,<<bootfs>>))))
#+end_src

** TODO Home configuration

#+begin_src scheme :noweb-ref home-dump :tangle home-configuration.scm
  (add-to-load-path "./services")

  (define-module (aisaka-home-configuration)
    #:use-module (gnu home)
    #:use-module (gnu home services)
    #:use-module (gnu home services shells)
    #:use-module (gnu packages)
    #:use-module (gnu services)
    #:use-module (guix gexp)
    #:use-module (ssh-server)
    #:use-module (sway))

  (define allow-downgrades
    "--allow-downgrades ")

  (define config-prefix
    "/home/marek/src/guix-config/")

  (define pull-guix
    "guix pull ")

  (define pull-guix-
    (string-append pull-guix
                   allow-downgrades
                   "--disable-authentication "))

  (define guix-home
    "guix home reconfigure ")

  (define home-configuration
    "home-configuration.scm ")

  (define reconfigure-home
    (string-append guix-home
                   config-prefix
                   home-configuration))

  (define reconfigure-home-
    (string-append reconfigure-home
                   allow-downgrades))

  (define guix-system
    "sudo guix system reconfigure ")

  (define system-configuration
    "system-configuration.scm ")

  (define reconfigure-system
    (string-append guix-system
                   config-prefix
                   system-configuration))

  (define reconfigure-system-
    (string-append reconfigure-system
                   allow-downgrades))

  (define and
    "&& ")

  (define system-update
    (string-append pull-guix
                   and
                   reconfigure-system
                   and
                   reconfigure-home))

  (define system-update-
    (string-append pull-guix-
                   and
                   reconfigure-system-
                   and
                   reconfigure-home-))

  (home-environment
   (packages (map (compose list
                           specification->package+output)
                  '("adwaita-icon-theme"
                    "alacritty"
                    "clamav"
                    "cpupower"
                    "dconf-editor"
                    "dmenu"                  
                    "emacs"
                    "emacs-aggressive-indent"
                    "emacs-eldoc"
                    "emacs-geiser"
                    "emacs-geiser-guile"
                    "emacs-nov-el"
                    "emacs-org-auto-tangle"
                    "emacs-org-contacts"
                    "emacs-org-contrib"
                    "font-google-noto"
                    "git"
                    "git-lfs"
                    "gnome-tweaks"
                    "gnupg"
                    "guile"
                    "guile-spec"
                    "hicolor-icon-theme"
                    "icecat"
                    "jami"
                    "libadwaita"
                    "libreoffice"
                    "nm-tray"
                    "pwgen"
                    "seahorse"
                    "sicp"
                    "strace"
                    "trezor-agent"
                    "unzip"
                    "zip")))
   (services
    `(,<<flashrom-package>>
      ,ssh-configuration
      ,sway-configuration
      ,sway-packages
      ,(service home-bash-service-type
                (home-bash-configuration
                 (environment-variables '(("EDITOR" . "emacs -nw")
                                          ("LIBGL_ALWAYS_SOFTWARE" . "1")
                                          ("NVM_DIR" . "$HOME/src/nvm")
                                          ("GUILE_AUTO_COMPILE" . "0")))
                 (aliases `(("grep" . "grep --color=auto ")
                            ("ll" . "ls -l ")
                            ("ls" . "ls -p --color=auto ")
                            ("pull-guix" . ,pull-guix)
                            ("pull-guix-" . ,pull-guix-)
                            ("reconfigure-home" . ,reconfigure-home)
                            ("reconfigure-home-" . ,reconfigure-home-)
                            ("reconfigure-system" . ,reconfigure-system)
                            ("reconfigure-system-" . ,reconfigure-system-)
                            ("system-update" . ,system-update)
                            ("system-update-" . ,system-update-)))
                 (bash-profile `(,(local-file "bash_profile")))
                 (bashrc `(,(local-file "bashrc")))))
      ,(simple-service 'configuration-files
                       home-files-service-type
                       `((".config/git/config" ,(local-file "git.config"))
                         (".config/guix/shell-authorized-directories"
                          ,(local-file "guix-shell-authorized-directories"))
                         (".emacs" ,(local-file "emacs.el")))))))
#+end_src