#+TITLE: Desktop
#+TODO: TODO(t) CHECK(s) | OFF(o)
#+PROPERTY: header-args                :mkdirp yes
#+PROPERTY: header-args:emacs-lisp     :eval never-export
#+PROPERTY: header-args:conf-space     :comments link
#+PROPERTY: header-args:js             :comments link
#+PROPERTY: header-args:conf-unix      :comments link
#+PROPERTY: header-args:conf-windows   :comments link
#+PROPERTY: header-args:conf-xdefaults :comments link
#+PROPERTY: header-args:sh             :tangle-mode (identity #o755) :comments link :shebang "#!/usr/bin/env bash"
#+PROPERTY: header-args:bash           :tangle-mode (identity #o755) :comments link :shebang "#!/usr/bin/env bash"
#+OPTIONS: broken-links:auto h:6 toc:nil

My general desktop environment configuration.

Parts prefixed with (OFF) are not used, but kept for historic purposes. For some reason GitHub's org renderer ignores TODO status, hence such a prefix. Round brackets instead of square ones to prevent GitHub's org renderer from screwing up.

References:
- [[https://sqrtminusone.xyz/posts/2022-02-12-literate/][A few cases of literate configuration]]. A few interesting ways in which literate configuration is used in this file.


* Some remarks
Removed features:
| Feature   | Last commit                              |
|-----------+------------------------------------------|
| rofi-buku | e22476b0cc6315e104e5ce4de5559a61c830c429 |

* Global customization
** Colors
I used to define color codes here (see [[https://github.com/SqrtMinusOne/dotfiles/commit/2dbf1cdd008ec0061456782cca3ebd76e603b31e][previous version of the file]]), now I just get colors from the current Emacs theme.

To use them, let's define a noweb block:
#+NAME: get-color
#+begin_src emacs-lisp :var name="black" quote=0
(let ((color (or (my/color-value name))))
  (if (> quote 0)
      (concat "\"" color "\"")
    color))
#+end_src

Test:
#+begin_src emacs-lisp :noweb yes
<<get-color(name="red", quote=1)>>
#+end_src

#+RESULTS:
: #f07178

Also, get a foreground for the current color:
#+NAME: get-fg-for-color
#+begin_src emacs-lisp :var name="black" quote=0
(let ((val (if (ct-light-p (my/color-value name))
               (my/color-value 'black)
             (my/color-value 'white))))
  (if (eq quote 1)
      (concat "\"" val "\"")
    val))
#+end_src

Test;
#+begin_src emacs-lisp :noweb yes
<<get-fg-for-color(name="red", quote=1)>>
#+end_src

#+RESULTS:
: #fafafa

This table used to have values, now it has only keys:
#+tblname: colors
| color         | key     |
|---------------+---------|
| black         | color0  |
| red           | color1  |
| green         | color2  |
| yellow        | color3  |
| blue          | color4  |
| magenta       | color5  |
| cyan          | color6  |
| white         | color7  |
| light-black   | color8  |
| light-red     | color9  |
| light-green   | color10 |
| light-yellow  | color11 |
| light-blue    | color12 |
| light-magenta | color13 |
| light-cyan    | color14 |
| light-white   | color15 |

** Xresources
*** Colors in Xresources
Some programs get their colors from =XResources=. Let's generate that file.

#+NAME: get-xresources
#+begin_src emacs-lisp :var table=colors
(mapconcat
 (lambda (elem)
   (concat "*" (nth 1 elem) ": " (my/color-value (nth 0 elem))))
 (seq-filter
  (lambda (elem) (and (nth 1 elem)
                      (not (string-empty-p (nth 1 elem)))))
  table)
 "\n")
#+end_src

#+begin_src conf-xdefaults :noweb yes :tangle ~/.Xresources
<<get-xresources()>>

*background: <<get-color(name="bg")>>
*foreground: <<get-color(name="fg")>>
#+end_src

Run =xrdb -load ~/.Xresources= to apply the changes.
*** Fonts
Also, Xresources are used to set =Xft= settings. Unfortunately, the DPI setting has to be unique for each machine, which means I cannot commit =Xresources= to the repo.

#+NAME: get-dpi
#+begin_src emacs-lisp
(let ((hostname (system-name)))
  (cond ((string-equal hostname "azure") 120)
        ((string-equal hostname "eminence") 120)
        ((string-equal hostname "indigo") 120)
        ((string-equal hostname "iris") 120)
        (t 96)))
#+end_src

#+begin_src conf-xdefaults :noweb yes :tangle ~/.Xresources
Xft.dpi: <<get-dpi()>>
#+end_src
** Themes
A few programs I use to customize the apperance are listed below.

| Guix dependency       | Description             |
|-----------------------+-------------------------|
| matcha-theme          | My preferred GTK theme  |
| papirus-icon-theme    | My preferred Icon theme |
| gnome-themes-standard |                         |
| xsettingsd            | X11 settings daemon     |
| gnome-themes-extra    |                         |

[[https://github.com/derat/xsettingsd][xsettingsd]] is a lightweight daemon which configures X11 applications. It is launched with shepherd in the [[*Services][Services]] section.

#+NAME: get-gtk-theme
#+begin_src emacs-lisp
(if (my/light-p)
    "Matcha-light-azul"
  "Matcha-dark-azul")
#+end_src

#+NAME: get-icons-theme
#+begin_src emacs-lisp
(if (my/light-p)
    "Papirus"
  "Papirus-Dark")
#+end_src

#+begin_src conf-space :tangle ~/.config/xsettingsd/xsettingsd.conf :noweb yes
Net/ThemeName "<<get-gtk-theme()>>"
Net/IconThemeName "<<get-icons-theme()>>"
Gtk/DecorationLayout "menu:minimize,maximize,close"
Gtk/FontName "Sans 10"
Gtk/MonospaceFontName "JetBrainsMono Nerd Mono 12"
Gtk/CursorThemeName "Adwaita"
Xft/Antialias 1
Xft/Hinting 0
Xft/HintStyle "hintnone"
#+end_src
** MIME
Setting the default MIME types
#+begin_src conf-unix :tangle ~/.config/mimeapps.list
[Default Applications]
text/html=firefox.desktop
x-scheme-handler/http=firefox.desktop
x-scheme-handler/https=firefox.desktop
x-scheme-handler/about=firefox.desktop
x-scheme-handler/unknown=firefox.desktop
x-scheme-handler/tg=userapp-Telegram Desktop-7PVWF1.desktop
image/png=feh.desktop
image/jpg=feh.desktop
image/jpeg=feh.desktop
application/pdf=org.pwmt.zathura.desktop

[Added Associations]
x-scheme-handler/tg=userapp-Telegram Desktop-7PVWF1.desktop;
application/pdf=org.pwmt.zathura.desktop
#+end_src
** Device-specific settings
| Guix dependency | Description                                |
|-----------------+--------------------------------------------|
| xrandr          | X11 CLI to RandR                           |
| xgamma          | A tool to alter monitor's gamma correction |
| xinput          | Configure input devices                    |

Set screen layout & other params depending on hostname
#+begin_src sh :tangle ~/bin/scripts/screen-layout
hostname=$(hostname)
if [ "$hostname" = "indigo" ]; then
    xrandr --output DisplayPort-0 --off --output HDMI-A-0 --mode 1920x1080 --pos 0x0 --rotate normal --output DVI-D-0 --mode 1920x1080 --pos 1920x0 --rotate normal
elif [ "$hostname" = "eminence" ]; then
    xgamma -gamma 1.25
fi
#+end_src
* EXWM
:PROPERTIES:
:header-args+: :tangle ~/.emacs.d/desktop.el
:END:
Settings for [[https://github.com/ch11ng/exwm][Emacs X Window Manager]], a tiling WM implemented in Emacs Lisp. This part has a few bits copied from my blog post.

References:
- [[https://github.com/ch11ng/exwm/wiki][EXWM Wiki]]
- [[https://github.com/daviwil/emacs-from-scratch/blob/master/Desktop.org][Emacs From Scratch config]]
- [[https://sqrtminusone.xyz/posts/2022-01-03-exwm/][Using EXWM and perspective.el on a multi-monitor setup]]

** Startup & UI
*** Xsession
First things first, Emacs has to be launched as a window manager. On a more conventional system I'd create a .desktop file in some system folder that can be seen by a login manager, but in the case of Guix it's a bit more complicated, because all such folders are not meant to be changed manually.

| Category     | Guix dependency |
|--------------+-----------------|
| desktop-misc | xinit           |
| desktop-misc | xss-lock        |

However, GDM, the login manager that seems to be the default on Guix, launches =~/.xsession= on the startup if it's present, which is just fine for my purposes.

#+begin_src sh :tangle ~/.xsession
# Source .profile
. ~/.profile

# Disable access control for the current user
xhost +SI:localuser:$USER

# Fix for Java applications
export _JAVA_AWT_WM_NONREPARENTING=1

# Apply XResourses
xrdb -merge ~/.Xresources

# Turn off the system bell
xset -b

# Use i3lock as a screen locker
xss-lock -- i3lock -f -i /home/pavel/Pictures/lock-wallpaper.png &

# Some apps that have to be launched only once.
picom &
# nm-applet &
dunst &
copyq &

# Run the Emacs startup script as a session.
# exec dbus-launch --exit-with-session ~/.emacs.d/run-exwm.sh
exec dbus-launch --exit-with-session emacs -mm --debug-init -l ~/.emacs.d/desktop.el
#+end_src
*** Startup apps
Now that Emacs is launched, it is necessary to set up the EXWM-specific parts of config.

I want to launch some apps from EXWM instead of the Xsession file for two purposes:
- the app may need to have the entire desktop environment set up
- or it may need to be restarted if Emacs is killed.

As of now, these are polybar, feh and, shepherd:
#+begin_src emacs-lisp
(defun my/exwm-run-polybar ()
  (call-process "~/bin/polybar.sh"))

(defun my/exwm-set-wallpaper ()
  (call-process-shell-command "feh --bg-fill ~/Pictures/wallpaper.jpg"))

(defun my/exwm-run-shepherd ()
  (when (string-empty-p (shell-command-to-string "pgrep -u pavel shepherd"))
    (call-process "shepherd")))
#+end_src
*** Pinentry
The GUI pinentry doesn't work too well with EXWM because of issues with popup windows, so we will use the Emacs one.

#+begin_src emacs-lisp
(use-package pinentry
  :straight t
  :after (exwm)
  :config
  (setenv "GPG_AGENT_INFO" nil) ;; use emacs pinentry
  (setq auth-source-debug t)

  (setq epg-gpg-program "gpg2") ;; not necessary
  (require 'epa-file)
  (epa-file-enable)
  (setq epa-pinentry-mode 'loopback)
  (setq epg-pinentry-mode 'loopback)
  (pinentry-start))
#+end_src

#+begin_src conf-space :tangle ~/.gnupg/gpg-agent.conf
default-cache-ttl 3600
max-cache-ttl 3600
allow-emacs-pinentry
allow-loopback-pinentry
pinentry-program /home/pavel/.guix-extra-profiles/console/console/bin/pinentry
#+end_src
*** Modeline
Show the current workspace in the modeline.

#+begin_src emacs-lisp
(use-package exwm-modeline
  :straight t
  :config
  (add-hook 'exwm-init-hook #'exwm-modeline-mode)
  (my/use-colors
   (exwm-modeline-current-workspace
    :foreground (my/color-value 'yellow)
    :weight 'bold)))
#+end_src
** Windows
A bunch of functions related to managing windows in EXWM.

*** Moving windows
As I wrote in my [[https://sqrtminusone.xyz/posts/2021-10-04-emacs-i3/][Emacs and i3]] post, I want to have a rather specific behavior when moving windows (which does resemble i3 in some way):
- if there is space in the required direction, move the Emacs window there;
- if there is no space in the required direction, but space in two orthogonal directions, move the Emacs window so that there is no more space in the orthogonal directions;

I can't say it's better or worse than the built-in functionality or one provided by evil, but I'm used to it and I think it fits better for managing a lot of windows.

So, first, we need a predicate that checks whether there is space in the given direction:
#+begin_src emacs-lisp
(require 'windmove)

(defun my/exwm-direction-exists-p (dir)
  "Check if there is space in the direction DIR.

Does not take the minibuffer into account."
  (cl-some (lambda (dir)
             (let ((win (windmove-find-other-window dir)))
               (and win (not (window-minibuffer-p win)))))
           (pcase dir
             ('width '(left right))
             ('height '(up down)))))
#+end_src

And a function to implement that:
#+begin_src emacs-lisp
(defun my/exwm-move-window (dir)
  "Move the current window in the direction DIR."
  (let ((other-window (windmove-find-other-window dir))
        (other-direction (my/exwm-direction-exists-p
                          (pcase dir
                            ('up 'width)
                            ('down 'width)
                            ('left 'height)
                            ('right 'height)))))
    (cond
     ((and other-window (not (window-minibuffer-p other-window)))
      (window-swap-states (selected-window) other-window))
     (other-direction
      (evil-move-window dir)))))
#+end_src

My preferred keybindings for this part are, of course, =s-<H|J|K|L>=.
*** Resizing windows
I find this odd that there are different commands to resize tiling and floating windows. So let's define one command to perform both resizes depending on the context:
#+begin_src emacs-lisp
(setq my/exwm-resize-value 5)

(defun my/exwm-resize-window (dir kind &optional value)
  "Resize the current window in the direction DIR.

DIR is either 'height or 'width, KIND is either 'shrink or
 'grow.  VALUE is `my/exwm-resize-value' by default.

If the window is an EXWM floating window, execute the
corresponding command from the exwm-layout group, execute the
command from the evil-window group."
  (unless value
    (setq value my/exwm-resize-value))
  (let* ((is-exwm-floating
          (and (derived-mode-p 'exwm-mode)
               exwm--floating-frame))
         (func (if is-exwm-floating
                   (intern
                    (concat
                     "exwm-layout-"
                     (pcase kind ('shrink "shrink") ('grow "enlarge"))
                     "-window"
                     (pcase dir ('height "") ('width "-horizontally"))))
                 (intern
                  (concat
                   "evil-window"
                   (pcase kind ('shrink "-decrease-") ('grow "-increase-"))
                   (symbol-name dir))))))
    (when is-exwm-floating
      (setq value (* 5 value)))
    (funcall func value)))
#+end_src

This function will call =exwm-layout-<shrink|grow>[-horizontally]= for EXWM floating window and =evil-window-<decrease|increase>-<width|height>= otherwise.

This function can be bound to the required keybindings directly, but I prefer a hydra to emulate the i3 submode:
#+begin_src emacs-lisp
(defhydra my/exwm-resize-hydra (:color pink :hint nil :foreign-keys run)
  "
^Resize^
_l_: Increase width   _h_: Decrease width   _j_: Increase height   _k_: Decrease height

_=_: Balance          "
  ("h" (lambda () (interactive) (my/exwm-resize-window 'width 'shrink)))
  ("j" (lambda () (interactive) (my/exwm-resize-window 'height 'grow)))
  ("k" (lambda () (interactive) (my/exwm-resize-window 'height 'shrink)))
  ("l" (lambda () (interactive) (my/exwm-resize-window 'width 'grow)))
  ("=" balance-windows)
  ("q" nil "quit" :color blue))
#+end_src
*** Improving splitting windows
=M-x evil-window-[v]split= (bound to =C-w v= and =C-w s= by default) are the default evil command to do splits.

One EXWM-related issue though is that by default doing such a split "copies" the current buffer to the new window. But as EXWM buffer cannot be "copied" like that, some other buffer is displayed in the split, and generally, that's not a buffer I want.

For instance, I prefer to have Chrome DevTools as a separate window. When I click "Inspect" on something, the DevTools window replaces my Ungoogled Chromium window. I press =C-w v=, and most often I have something like =*scratch*= buffer in the opened split instead of the previous Chromium window.

To implement better behavior, I define the following advice:
#+begin_src emacs-lisp
(defun my/exwm-fill-other-window (&rest _)
  "Open the most recently used buffer in the next window."
  (interactive)
  (when (and (eq major-mode 'exwm-mode) (not (eq (next-window) (get-buffer-window))))
    (let ((other-exwm-buffer
           (cl-loop with other-buffer = (persp-other-buffer)
                    for buf in (sort (persp-current-buffers) (lambda (a _) (eq a other-buffer)))
                    with current-buffer = (current-buffer)
                    when (and (not (eq current-buffer buf))
                              (buffer-live-p buf)
                              (not (string-match-p (persp--make-ignore-buffer-rx) (buffer-name buf)))
                              (not (get-buffer-window buf)))
                    return buf)))
      (when other-exwm-buffer
        (with-selected-window (next-window)
          (switch-to-buffer other-exwm-buffer))))))
#+end_src

This is meant to be called after doing an either vertical or horizontal split, so it's advised like that:
#+begin_src emacs-lisp
(advice-add 'evil-window-split :after #'my/exwm-fill-other-window)
(advice-add 'evil-window-vsplit :after #'my/exwm-fill-other-window)
#+end_src

This works as follows. If the current buffer is an EXWM buffer and there are other windows open (that is, =(next-window)= is not the current window), the function tries to find another suitable buffer to be opened in the split. And that also takes the perspectives into account, so buffers are searched only within the current perspective, and the buffer returned by =persp-other-buffer= will be the top candidate.
** Perspectives
[[https://github.com/nex3/perspective-el][perspective.el]] is one package I like that provides workspaces for Emacs, called "perspectives". Each perspective has a separate buffer list, window layout, and a few other things that make it easier to separate things within Emacs.

One feature I'd like to highlight is integration between perspective.el and [[https://github.com/Alexander-Miller/treemacs][treemacs]], where one perspective can have a separate treemacs tree. Although now tab-bar.el seems to be getting into shape to compete with perspective.el, as of the time of this writing, there's no such integration, at least not out of the box.

perspective.el works with EXWM more or less as one would expect - each EXWM workspace has its own set of perspectives. That way it feels somewhat like having multiple Emacs frames in a tiling window manager, although, of course, much more integrated with Emacs.

However, there are still some issues. For instance, I was having strange behaviors with floating windows, EXWM buffers in perspectives, etc. So I've made a package called [[https://github.com/SqrtMinusOne/perspective-exwm.el][perspective-exwm.el]] that does two things:
- Advices away the issues I had. Take a look at the package homepage for more detail on that.
- Provides some additional functionality that makes use of both perspective.el and EXWM.

References:
- [[https://github.com/SqrtMinusOne/perspective-exwm.el][perspective-exwm.el repo]]

#+begin_src emacs-lisp
(use-package perspective-exwm
  :straight t
  :config
  (setq perspective-exwm-override-initial-name
        '((0 . "misc")
          (1 . "core")
          (2 . "browser")
          (3 . "comms")
          (4 . "dev")))
  (setq perspective-exwm-cycle-max-message-length 180)
  (general-define-key
   :keymaps 'perspective-map
   "e" #'perspective-exwm-move-to-workspace
   "E" #'perspective-exwm-copy-to-workspace))
#+end_src

By default, a new Emacs buffer opens in the current perspective in the current workspace, but sure enough, it's possible to change that.

For EXWM windows, the =perspective-exwm= package provides a function called =perspective-exwm-assign-window=, which is intended to be used in =exwm-manage-finish-hook=, for instance:
#+begin_src emacs-lisp
(defun my/exwm-configure-window ()
  (interactive)
  (unless exwm--floating-frame
    (pcase exwm-class-name
      ((or "Firefox" "Nightly")
       (perspective-exwm-assign-window
        :workspace-index 2
        :persp-name "browser"))
      ("Nyxt"
       (perspective-exwm-assign-window
        :workspace-index 2
        :persp-name "browser"))
      ("Alacritty"
       (perspective-exwm-assign-window
        :persp-name "term"))
      ((or "VK" "Slack" "discord" "TelegramDesktop" "Rocket.Chat")
       (perspective-exwm-assign-window
        :workspace-index 3
        :persp-name "comms"))
      ((or "Chromium-browser" "jetbrains-datagrip")
       (perspective-exwm-assign-window
        :workspace-index 4
        :persp-name "dev")))))

(add-hook 'exwm-manage-finish-hook #'my/exwm-configure-window)
#+end_src
** Workspaces and multi-monitor setup
A section about improving management of EXWM workspaces.

Some features, common in other tiling WMs, are missing in EXWM out of the box, namely:
- a command to [[https://i3wm.org/docs/userguide.html#_focusing_moving_containers][switch to another monitor]];
- a command to [[https://i3wm.org/docs/userguide.html#move_to_outputs][move the current workspace to another monitor]];
- using the same commands to switch between windows and monitors.

Here's my take on implementing them.

*** Tracking recently used workspaces
First up though, we need to track the workspaces in the usage order. I'm not sure if there's some built-in functionality in EXWM for that, but it seems simple enough to implement.

Here is a snippet of code that does it:
#+begin_src emacs-lisp
(setq my/exwm-last-workspaces '(1))

(defun my/exwm-store-last-workspace ()
  "Save the last workspace to `my/exwm-last-workspaces'."
  (setq my/exwm-last-workspaces
        (seq-uniq (cons exwm-workspace-current-index
                        my/exwm-last-workspaces))))

(add-hook 'exwm-workspace-switch-hook
          #'my/exwm-store-last-workspace)
#+end_src

The variable =my/exwm-last-workspaces= stores the workspace indices; the first item is the index of the current workspace, the second item is the index of the previous workspace, and so on.

One note here is that workspaces may also disappear (e.g. after =M-x exwm-workspace-delete=), so we also need a function to clean the list:
#+begin_src emacs-lisp
(defun my/exwm-last-workspaces-clear ()
  "Clean `my/exwm-last-workspaces' from deleted workspaces."
  (setq my/exwm-last-workspaces
        (seq-filter
         (lambda (i) (nth i exwm-workspace--list))
         my/exwm-last-workspaces)))
#+end_src

*** The monitor list
The second piece of the puzzle is getting the monitor list in the right order.

While it is possible to retrieve the monitor list from =exwm-randr-workspace-output-plist=, this won't scale well beyond two monitors, mainly because changing this variable may screw up the order.

So the easiest way is to just define the variable like that:
#+begin_src emacs-lisp :eval no
(setq my/exwm-monitor-list
      (pcase (system-name)
        ("indigo" '(nil "DVI-D-0"))
        (_ '(nil))))
#+end_src

If you are changing the RandR configuration on the fly, this variable will also need to be changed, but for now, I don't have such a necessity.

A function to get the current monitor:
#+begin_src emacs-lisp :eval no
(defun my/exwm-get-current-monitor ()
  "Return the current monitor name or nil."
  (plist-get exwm-randr-workspace-output-plist
             (cl-position (selected-frame)
                          exwm-workspace--list)))
#+end_src

And a function to cycle the monitor list in either direction:
#+begin_src emacs-lisp
(defun my/exwm-get-other-monitor (dir)
  "Cycle the monitor list in the direction DIR.

DIR is either 'left or 'right."
  (nth
   (% (+ (cl-position
          (my/exwm-get-current-monitor)
          my/exwm-monitor-list
          :test #'string-equal)
         (length my/exwm-monitor-list)
         (pcase dir
           ('right 1)
           ('left -1)))
      (length my/exwm-monitor-list))
   my/exwm-monitor-list))
#+end_src
*** Switch to another monitor
With the functions from the previous two sections, we can implement switching to another monitor by switching to the most recently used workspace on that monitor.

One caveat here is that on the startup the =my/exwm-last-workspaces= variable won't have any values from other monitor(s), so this list is concatenated with the list of available workspace indices.
#+begin_src emacs-lisp
(defun my/exwm-switch-to-other-monitor (&optional dir)
  "Switch to another monitor."
  (interactive)
  (my/exwm-last-workspaces-clear)
  (let ((mouse-autoselect-window nil))
    (exwm-workspace-switch
     (cl-loop with other-monitor = (my/exwm-get-other-monitor (or dir 'right))
              for i in (append my/exwm-last-workspaces
                               (cl-loop for i from 0
                                        for _ in exwm-workspace--list
                                        collect i))
              if (if other-monitor
                     (string-equal (plist-get exwm-randr-workspace-output-plist i)
                                   other-monitor)
                   (not (plist-get exwm-randr-workspace-output-plist i)))
              return i))))
#+end_src

I bind this function to =s-q=, as I'm used from i3.
*** Move the workspace to another monitor
Now, moving the workspace to another monitor.

This is actually quite easy to pull off - one just has to update =exwm-randr-workspace-monitor-plist= accordingly and run =exwm-randr-refresh=. I just add another check there because I don't want some monitor to remain without workspaces at all.
#+begin_src emacs-lisp
(defun my/exwm-workspace-switch-monitor ()
  "Move the current workspace to another monitor."
  (interactive)
  (let ((new-monitor (my/exwm-get-other-monitor 'right))
        (current-monitor (my/exwm-get-current-monitor)))
    (when (and current-monitor
               (>= 1
                   (cl-loop for (key value) on exwm-randr-workspace-monitor-plist
                            by 'cddr
                            if (string-equal value current-monitor) sum 1)))
      (error "Can't remove the last workspace on the monitor!"))
    (setq exwm-randr-workspace-monitor-plist
          (map-delete exwm-randr-workspace-monitor-plist exwm-workspace-current-index))
    (when new-monitor
      (setq exwm-randr-workspace-monitor-plist
            (plist-put exwm-randr-workspace-monitor-plist
                       exwm-workspace-current-index
                       new-monitor))))
  (exwm-randr-refresh))
#+end_src

In my configuration this is bound to =s-<tab>=.
*** Windmove between monitors
And the final (for now) piece of the puzzle is using the same command to switch between windows and monitors. E.g. when the focus is on the right-most window on one monitor, I want the command to switch to the left-most window on the monitor to the right instead of saying "No window right from the selected window", as =windmove-right= does.

So here is my implementation of that. It always does =windmove-do-select-window= for ='down= and ='up=. For ='right= and ='left= though, the function calls the previously defined function to switch to other monitor if =windmove-find-other-window= doesn't return anything.
#+begin_src emacs-lisp
(defun my/exwm-windmove (dir)
  "Move to window or monitor in the direction DIR."
  (if (or (eq dir 'down) (eq dir 'up))
      (windmove-do-window-select dir)
    (let ((other-window (windmove-find-other-window dir))
          (other-monitor (my/exwm-get-other-monitor dir))
          (opposite-dir (pcase dir
                          ('left 'right)
                          ('right 'left))))
      (if other-window
          (windmove-do-window-select dir)
        (let ((mouse-autoselect-window nil))
          (my/exwm-switch-to-other-monitor dir))
        (cl-loop while (windmove-find-other-window opposite-dir)
                 do (windmove-do-window-select opposite-dir))))))
#+end_src
** Completions
Setting up some completion interfaces that fit particularly well to use with EXWM. While rofi also works, I want to use Emacs functionality wherever possible to have one completion interface everywhere.

*** ivy-posframe
[[https://github.com/tumashu/ivy-posframe][ivy-posframe]] is an extension to show ivy candidates in a posframe.

Take a look at [[https://github.com/ch11ng/exwm/issues/550][this issue]] in the EXWM repo about setting it up.

Edit [2022-04-09 Sat]: This looks nice, but unfortunately too unstable. Disabling it.

#+begin_src emacs-lisp
(use-package ivy-posframe
  :straight t
  :disabled
  :config
  (setq ivy-posframe-parameters '((left-fringe . 10)
                                  (right-fringe . 10)
                                  (parent-frame . nil)
                                  (max-width . 80)))
  (setq ivy-posframe-height-alist '((t . 20)))
  (setq ivy-posframe-width 180)
  (setq ivy-posframe-min-height 5)
  (setq ivy-posframe-display-functions-alist
        '((swiper . ivy-display-function-fallback)
          (swiper-isearch . ivy-display-function-fallback)
          (t . ivy-posframe-display)))
  (ivy-posframe-mode 1))
#+end_src
**** Disable mouse movement
*SOURCE*: https://github.com/ch11ng/exwm/issues/550#issuecomment-744784838

#+begin_src emacs-lisp
(defun my/advise-fn-suspend-follow-mouse (fn &rest args)
  (let ((focus-follows-mouse nil)
        (mouse-autoselect-window nil)
        (pos (x-mouse-absolute-pixel-position)))
    (unwind-protect
        (apply fn args)
      (x-set-mouse-absolute-pixel-position (car pos)
                                           (cdr pos)))))
(with-eval-after-load 'ivy-posframe
  (advice-add #'ivy-posframe--read :around #'my/advise-fn-suspend-follow-mouse))
#+end_src
**** Disable changing focus
Not sure about that. The cursor occasionally changes focus when I'm exiting posframe, and this doesn't catch all the cases.

#+begin_src emacs-lisp
(defun my/setup-posframe (&rest args)
  (mapc
   (lambda (var)
     (kill-local-variable var)
     (setf (symbol-value var) nil))
   '(exwm-workspace-warp-cursor
     mouse-autoselect-window
     focus-follows-mouse)))

(defun my/restore-posframe (&rest args)
  (run-with-timer
   0.25
   (lambda ()
     (mapc
      (lambda (var)
        (kill-local-variable var)
        (setf (symbol-value var) t))
      '(exwm-workspace-warp-cursor
        mouse-autoselect-window
        focus-follows-mouse)))))

(with-eval-after-load 'ivy-posframe
  (advice-add #'posframe--create-posframe :after #'my/setup-posframe)
  (advice-add #'ivy-posframe-cleanup :after #'my/restore-posframe))
#+end_src
*** Linux app
=counsel-linux-app= is a counsel interface to select a Linux desktop application.

By default, it also shows paths from =/gnu/store=, so there is a custom formatter function.
#+begin_src emacs-lisp
(defun my/counsel-linux-app-format-function (name comment _exec)
  (format "% -45s%s"
          (propertize
           (ivy--truncate-string name 45)
           'face 'counsel-application-name)
          (if comment
              (concat ": " (ivy--truncate-string comment 100))
            "")))

(setq counsel-linux-app-format-function #'my/counsel-linux-app-format-function)
#+end_src

Also, by default it tries to launch stuff with =gtk-launch=, which is in the =gtk+= package.

| Category     | Guix dependency |
|--------------+-----------------|
| desktop-misc | gtk+:bin        |
*** password-store-ivy
[[https://github.com/SqrtMinusOne/password-store-ivy][password-store-ivy]] is another package of mine, inspired by [[https://github.com/carnager/rofi-pass][rofi-pass]].

#+begin_src emacs-lisp
(use-package password-store-ivy
  :straight (:host github :repo "SqrtMinusOne/password-store-ivy")
  :after (exwm))
#+end_src
*** emojis
[[https://github.com/iqbalansari/emacs-emojify][emojify]] is an Emacs package that adds emoji display to Emacs. While its primary capacity is no longer necessary in Emacs 28, it a few functions to insert emojis are still handy.

#+begin_src emacs-lisp
(use-package emojify
  :straight t)
#+end_src

Because I occasionally want to type emojis to other programs, I reuse a function from =password-store-ivy=:
#+begin_src emacs-lisp
(defun my/emojify-type ()
  "Type an emoji."
  (interactive)
  (let ((emoji (emojify-completing-read "Type emoji: ")))
    (kill-new emoji)
    (password-store-ivy--async-commands
     (list
      (password-store-ivy--get-wait-command 10)
      "xdotool key Shift+Insert"))))
#+end_src
** Keybindings
*** EXWM keybindings
Setting keybindings for EXWM. This actually has to be in the =:config= block of the =use-package= form, that is it has to be run after EXWM is loaded, so I use noweb to put this block in the correct place.

First, some prefixes for keybindings that are always passed to EXWM instead of the X application in =line-mode=:
#+begin_src emacs-lisp :tangle no :noweb-ref exwm-keybindings
(setq exwm-input-prefix-keys
      `(?\C-x
        ?\C-w
        ?\M-x
        ?\M-u))
#+end_src

Also other local keybindings, that are also available only in =line-mode=:
#+begin_src emacs-lisp :tangle no :noweb-ref exwm-keybindings
(defmacro my/app-command (command)
  `(lambda () (interactive) (my/run-in-background ,command)))

(general-define-key
 :keymaps '(exwm-mode-map)
 "C-q" #'exwm-input-send-next-key
 "<print>" (my/app-command "flameshot gui")
 "<mode-line> s-<mouse-4>" #'perspective-exwm-cycle-all-buffers-backward
 "<mode-line> s-<mouse-5>" #'perspective-exwm-cycle-all-buffers-forward
 "M-x" #'counsel-M-x
 "M-SPC" (general-key "SPC"))
#+end_src

Simulation keys.
#+begin_src emacs-lisp :tangle no :noweb-ref exwm-keybindings
(setq exwm-input-simulation-keys `((,(kbd "M-w") . ,(kbd "C-w"))
                                   (,(kbd "M-c") . ,(kbd "C-c"))))
#+end_src

A quit function with a confirmation.
#+begin_src emacs-lisp
(defun my/exwm-quit ()
  (interactive)
  (when (or (not (eq (selected-window) (next-window)))
            (y-or-n-p "This is the last window. Are you sure?"))
    (evil-quit)))
#+end_src

And keybindings that are available in both =char-mode= and =line-mode=:
#+begin_src emacs-lisp :tangle no :noweb-ref exwm-keybindings
(setq exwm-input-global-keys
      `(
        ;; Reset to line-mode
        (,(kbd "s-R") . exwm-reset)

        ;; Switch windows
        (,(kbd "s-<left>") . (lambda () (interactive) (my/exwm-windmove 'left)))
        (,(kbd "s-<right>") . (lambda () (interactive) (my/exwm-windmove 'right)))
        (,(kbd "s-<up>") . (lambda () (interactive) (my/exwm-windmove 'up)))
        (,(kbd "s-<down>") . (lambda () (interactive) (my/exwm-windmove 'down)))

        (,(kbd "s-h"). (lambda () (interactive) (my/exwm-windmove 'left)))
        (,(kbd "s-l") . (lambda () (interactive) (my/exwm-windmove 'right)))
        (,(kbd "s-k") . (lambda () (interactive) (my/exwm-windmove 'up)))
        (,(kbd "s-j") . (lambda () (interactive) (my/exwm-windmove 'down)))

        ;; Moving windows
        (,(kbd "s-H") . (lambda () (interactive) (my/exwm-move-window 'left)))
        (,(kbd "s-L") . (lambda () (interactive) (my/exwm-move-window 'right)))
        (,(kbd "s-K") . (lambda () (interactive) (my/exwm-move-window 'up)))
        (,(kbd "s-J") . (lambda () (interactive) (my/exwm-move-window 'down)))

        ;; Fullscreen
        (,(kbd "s-f") . exwm-layout-toggle-fullscreen)
        (,(kbd "s-F") . exwm-floating-toggle-floating)

        ;; Quit
        (,(kbd "s-Q") . my/exwm-quit)

        ;; Split windows
        (,(kbd "s-s") . evil-window-vsplit)
        (,(kbd "s-v") . evil-window-hsplit)

        ;; Switch perspectives
        (,(kbd "s-,") . persp-prev)
        (,(kbd "s-.") . persp-next)

        ;; Switch buffers
        (,(kbd "s-e") . persp-ivy-switch-buffer)
        (,(kbd "s-E") . my/persp-ivy-switch-buffer-other-window)

        ;; Resize windows
        (,(kbd "s-r") . my/exwm-resize-hydra/body)

        ;; Apps & stuff
        (,(kbd "s-p") . counsel-linux-app)
        (,(kbd "s-P") . async-shell-command)
        (,(kbd "s-;") . my/exwm-apps-hydra/body)
        (,(kbd "s--") . password-store-ivy)
        (,(kbd "s-=") . my/emojify-type)
        (,(kbd "s-i") . ,(my/app-command "copyq menu"))

        ;; Basic controls
        (,(kbd "<XF86AudioRaiseVolume>") . ,(my/app-command "ponymix increase 5 --max-volume 150"))
        (,(kbd "<XF86AudioLowerVolume>") . ,(my/app-command "ponymix decrease 5 --max-volume 150"))
        (,(kbd "<XF86MonBrightnessUp>") . ,(my/app-command "light -A 5"))
        (,(kbd "<XF86MonBrightnessDown>") . ,(my/app-command "light -U 5"))
        (,(kbd "<XF86AudioMute>") . ,(my/app-command "ponymix toggle"))

        (,(kbd "<XF86AudioPlay>") . ,(my/app-command "mpc toggle"))
        (,(kbd "<XF86AudioPause>") . ,(my/app-command "mpc pause"))
        (,(kbd "<print>") . ,(my/app-command "flameshot gui"))

        ;; Switch workspace
        (,(kbd "s-q") . my/exwm-switch-to-other-monitor)
        (,(kbd "s-w") . exwm-workspace-switch)
        (,(kbd "s-W") . exwm-workspace-move-window)
        (,(kbd "s-<tab>") . my/exwm-workspace-switch-monitor)

        ;; Perspectives
        (,(kbd "s-{") . perspective-exwm-cycle-all-buffers-backward)
        (,(kbd "s-}") . perspective-exwm-cycle-all-buffers-forward)
        (,(kbd "s-[") . perspective-exwm-cycle-exwm-buffers-backward)
        (,(kbd "s-]") . perspective-exwm-cycle-exwm-buffers-forward)
        (,(kbd "s-<mouse-4>") . perspective-exwm-cycle-exwm-buffers-backward)
        (,(kbd "s-<mouse-5>") . perspective-exwm-cycle-exwm-buffers-forward)
        (,(kbd "s-`") . perspective-exwm-switch-perspective)
        (,(kbd "s-o") . ,(my/app-command "rofi -show window"))

        ;; 's-N': Switch to certain workspace with Super (Win) plus a number key (0 - 9)
        ,@(mapcar (lambda (i)
                    `(,(kbd (format "s-%d" i)) .
                      (lambda ()
                        (interactive)
                        (when (or (< ,i (exwm-workspace--count))
                                  (y-or-n-p (format "Create workspace %d" ,i)))
                          (exwm-workspace-switch-create ,i) ))))
                  (number-sequence 0 9))))
#+end_src

A function to apply changes to =exwm-input-global-keys=.
#+begin_src emacs-lisp
(defun my/exwm-update-global-keys ()
  (interactive)
  (setq exwm-input--global-keys nil)
  (dolist (i exwm-input-global-keys)
    (exwm-input--set-key (car i) (cdr i)))
  (when exwm--connection
    (exwm-input--update-global-prefix-keys)))
#+end_src
*** App shortcuts
A +transient+ hydra for shortcuts for the most frequent apps.
#+begin_src emacs-lisp
(defun my/run-in-background (command)
  (let ((command-parts (split-string command "[ ]+")))
    (apply #'call-process `(,(car command-parts) nil 0 nil ,@(cdr command-parts)))))

(defhydra my/exwm-apps-hydra (:color blue :hint nil)
  "
^Apps^
_t_: Terminal (Alacritty)
_b_: Browser (Firefox)
_s_: Rocket.Chat
_e_: Telegram
_d_: Discord
"
  ("t" (lambda () (interactive) (my/run-in-background "alacritty")))
  ("b" (lambda () (interactive) (my/run-in-background "firefox")))
  ("s" (lambda () (interactive) (my/run-in-background "flatpak run chat.rocket.RocketChat")))
  ("e" (lambda () (interactive) (my/run-in-background "telegram-desktop")))
  ("d" (lambda () (interactive) (my/run-in-background "flatpak run com.discordapp.Discord"))))
#+end_src
*** Locking up
Run i3lock.

#+begin_src emacs-lisp
(defun my/exwm-lock ()
  (interactive)
  (my/run-in-background "i3lock -f -i /home/pavel/Pictures/lock-wallpaper.png"))
#+end_src
** Fixes
*** Catch and report all errors raised when invoking command hooks
- *CREDIT*: Thanks David! https://github.com/daviwil/exwm/commit/7b1be884124711af0a02eac740bdb69446bc54cc

#+begin_src emacs-lisp :noweb-ref exwm-fixes :tangle no
(defun exwm-input--fake-last-command ()
  "Fool some packages into thinking there is a change in the buffer."
  (setq last-command #'exwm-input--noop)
  (condition-case hook-error
      (progn
        (run-hooks 'pre-command-hook)
        (run-hooks 'post-command-hook))
    ((error)
     (exwm--log "Error occurred while running command hooks: %s\n\nBacktrace:\n\n%s"
                hook-error
                (with-temp-buffer
                  (setq-local standard-output (current-buffer))
                  (backtrace)
                  (buffer-string))))))
#+end_src
*** Improve floating windows behavior
These 3 settings seem to cause particular trouble with floating windows. Setting them to =nil= improves the stability greatly.

#+begin_src emacs-lisp
(defun my/fix-exwm-floating-windows ()
  (setq-local exwm-workspace-warp-cursor nil)
  (setq-local mouse-autoselect-window nil)
  (setq-local focus-follows-mouse nil))

(add-hook 'exwm-floating-setup-hook #'my/fix-exwm-floating-windows)
#+end_src
*** Fix exwm--on-ClientMessage
It seems like this strange commit: [[https://github.com/ch11ng/exwm/commit/ce2191c444ae29edf669790a1002238b8fc90ac4][c90ac4]] breaks focusing on an X frame when switching to a workspace, at least on Emacs <= 28. This reverts to the previous version.

#+begin_src emacs-lisp
(defun exwm--on-ClientMessage-old (raw-data _synthetic)
  "Handle ClientMessage event."
  (let ((obj (make-instance 'xcb:ClientMessage))
        type id data)
    (xcb:unmarshal obj raw-data)
    (setq type (slot-value obj 'type)
          id (slot-value obj 'window)
          data (slot-value (slot-value obj 'data) 'data32))
    (exwm--log "atom=%s(%s)" (x-get-atom-name type exwm-workspace--current)
               type)
    (cond
     ;; _NET_NUMBER_OF_DESKTOPS.
     ((= type xcb:Atom:_NET_NUMBER_OF_DESKTOPS)
      (let ((current (exwm-workspace--count))
            (requested (elt data 0)))
        ;; Only allow increasing/decreasing the workspace number by 1.
        (cond
         ((< current requested)
          (make-frame))
         ((and (> current requested)
               (> current 1))
          (let ((frame (car (last exwm-workspace--list))))
            (exwm-workspace--get-remove-frame-next-workspace frame)
            (delete-frame frame))))))
     ;; _NET_CURRENT_DESKTOP.
     ((= type xcb:Atom:_NET_CURRENT_DESKTOP)
      (exwm-workspace-switch (elt data 0)))
     ;; _NET_ACTIVE_WINDOW.
     ((= type xcb:Atom:_NET_ACTIVE_WINDOW)
      (let ((buffer (exwm--id->buffer id))
            iconic window)
        (when (buffer-live-p buffer)
          (with-current-buffer buffer
            (when (eq exwm--frame exwm-workspace--current)
              (if exwm--floating-frame
                  (select-frame exwm--floating-frame)
                (setq iconic (exwm-layout--iconic-state-p))
                (when iconic
                  ;; State change: iconic => normal.
                  (set-window-buffer (frame-selected-window exwm--frame)
                                     (current-buffer)))
                ;; Focus transfer.
                (setq window (get-buffer-window nil t))
                (when (or iconic
                          (not (eq window (selected-window))))
                  (select-window window))))))))
     ;; _NET_CLOSE_WINDOW.
     ((= type xcb:Atom:_NET_CLOSE_WINDOW)
      (let ((buffer (exwm--id->buffer id)))
        (when (buffer-live-p buffer)
          (exwm--defer 0 #'kill-buffer buffer))))
     ;; _NET_WM_MOVERESIZE
     ((= type xcb:Atom:_NET_WM_MOVERESIZE)
      (let ((direction (elt data 2))
            (buffer (exwm--id->buffer id)))
        (unless (and buffer
                     (not (buffer-local-value 'exwm--floating-frame buffer)))
          (cond ((= direction
                    xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_KEYBOARD)
                 ;; FIXME
                 )
                ((= direction
                    xcb:ewmh:_NET_WM_MOVERESIZE_MOVE_KEYBOARD)
                 ;; FIXME
                 )
                ((= direction xcb:ewmh:_NET_WM_MOVERESIZE_CANCEL)
                 (exwm-floating--stop-moveresize))
                ;; In case it's a workspace frame.
                ((and (not buffer)
                      (catch 'break
                        (dolist (f exwm-workspace--list)
                          (when (or (eq id (frame-parameter f 'exwm-outer-id))
                                    (eq id (frame-parameter f 'exwm-id)))
                            (throw 'break t)))
                        nil)))
                (t
                 ;; In case it's a floating frame,
                 ;; move the corresponding X window instead.
                 (unless buffer
                   (catch 'break
                     (dolist (pair exwm--id-buffer-alist)
                       (with-current-buffer (cdr pair)
                         (when
                             (and exwm--floating-frame
                                  (or (eq id
                                          (frame-parameter exwm--floating-frame
                                                           'exwm-outer-id))
                                      (eq id
                                          (frame-parameter exwm--floating-frame
                                                           'exwm-id))))
                           (setq id exwm--id)
                           (throw 'break nil))))))
                 ;; Start to move it.
                 (exwm-floating--start-moveresize id direction))))))
     ;; _NET_REQUEST_FRAME_EXTENTS
     ((= type xcb:Atom:_NET_REQUEST_FRAME_EXTENTS)
      (let ((buffer (exwm--id->buffer id))
            top btm)
        (if (or (not buffer)
                (not (buffer-local-value 'exwm--floating-frame buffer)))
            (setq top 0
                  btm 0)
          (setq top (window-header-line-height)
                btm (window-mode-line-height)))
        (xcb:+request exwm--connection
            (make-instance 'xcb:ewmh:set-_NET_FRAME_EXTENTS
                           :window id
                           :left 0
                           :right 0
                           :top top
                           :bottom btm)))
      (xcb:flush exwm--connection))
     ;; _NET_WM_DESKTOP.
     ((= type xcb:Atom:_NET_WM_DESKTOP)
      (let ((buffer (exwm--id->buffer id)))
        (when (buffer-live-p buffer)
          (exwm-workspace-move-window (elt data 0) id))))
     ;; _NET_WM_STATE
     ((= type xcb:Atom:_NET_WM_STATE)
      (let ((action (elt data 0))
            (props (list (elt data 1) (elt data 2)))
            (buffer (exwm--id->buffer id))
            props-new)
        ;; only support _NET_WM_STATE_FULLSCREEN / _NET_WM_STATE_ADD for frames
        (when (and (not buffer)
                   (memq xcb:Atom:_NET_WM_STATE_FULLSCREEN props)
                   (= action xcb:ewmh:_NET_WM_STATE_ADD))
          (xcb:+request
              exwm--connection
              (make-instance 'xcb:ewmh:set-_NET_WM_STATE
                             :window id
                             :data (vector xcb:Atom:_NET_WM_STATE_FULLSCREEN)))
          (xcb:flush exwm--connection))
        (when buffer                    ;ensure it's managed
          (with-current-buffer buffer
            ;; _NET_WM_STATE_FULLSCREEN
            (when (or (memq xcb:Atom:_NET_WM_STATE_FULLSCREEN props)
                      (memq xcb:Atom:_NET_WM_STATE_ABOVE props))
              (cond ((= action xcb:ewmh:_NET_WM_STATE_ADD)
                     (unless (exwm-layout--fullscreen-p)
                       (exwm-layout-set-fullscreen id))
                     (push xcb:Atom:_NET_WM_STATE_FULLSCREEN props-new))
                    ((= action xcb:ewmh:_NET_WM_STATE_REMOVE)
                     (when (exwm-layout--fullscreen-p)
                       (exwm-layout-unset-fullscreen id)))
                    ((= action xcb:ewmh:_NET_WM_STATE_TOGGLE)
                     (if (exwm-layout--fullscreen-p)
                         (exwm-layout-unset-fullscreen id)
                       (exwm-layout-set-fullscreen id)
                       (push xcb:Atom:_NET_WM_STATE_FULLSCREEN props-new)))))
            ;; _NET_WM_STATE_DEMANDS_ATTENTION
            ;; FIXME: check (may require other properties set)
            (when (memq xcb:Atom:_NET_WM_STATE_DEMANDS_ATTENTION props)
              (when (= action xcb:ewmh:_NET_WM_STATE_ADD)
                (unless (eq exwm--frame exwm-workspace--current)
                  (set-frame-parameter exwm--frame 'exwm-urgency t)
                  (setq exwm-workspace--switch-history-outdated t)))
              ;; xcb:ewmh:_NET_WM_STATE_REMOVE?
              ;; xcb:ewmh:_NET_WM_STATE_TOGGLE?
              )
            (xcb:+request exwm--connection
                (make-instance 'xcb:ewmh:set-_NET_WM_STATE
                               :window id :data (vconcat props-new)))
            (xcb:flush exwm--connection)))))
     ((= type xcb:Atom:WM_PROTOCOLS)
      (let ((type (elt data 0)))
        (cond ((= type xcb:Atom:_NET_WM_PING)
               (setq exwm-manage--ping-lock nil))
              (t (exwm--log "Unhandled WM_PROTOCOLS of type: %d" type)))))
     ((= type xcb:Atom:WM_CHANGE_STATE)
      (let ((buffer (exwm--id->buffer id)))
        (when (and (buffer-live-p buffer)
                   (= (elt data 0) xcb:icccm:WM_STATE:IconicState))
          (with-current-buffer buffer
            (if exwm--floating-frame
                (call-interactively #'exwm-floating-hide)
              (bury-buffer))))))
     (t
      (exwm--log "Unhandled: %s(%d)"
                 (x-get-atom-name type exwm-workspace--current) type)))))

(with-eval-after-load 'exwm
  (advice-add 'exwm--on-ClientMessage :override #'exwm--on-ClientMessage-old))
#+end_src

** Application-specific settings
Start Nyxt in =char-mode=.

#+begin_src emacs-lisp
(setq exwm-manage-configurations
   '(((member exwm-class-name '("Nyxt"))
	   char-mode t)))
#+end_src
** EXWM config
And the EXWM config itself.

#+begin_src emacs-lisp :noweb yes
(defun my/exwm-init ()
  (exwm-workspace-switch 1)

  (my/exwm-run-polybar)
  (my/exwm-set-wallpaper)
  (my/exwm-run-shepherd)
  (my/run-in-background "gpgconf --reload gpg-agent"))

(defun my/exwm-update-class ()
  (exwm-workspace-rename-buffer (format "EXWM :: %s" exwm-class-name)))

(defun my/exwm-set-alpha (alpha)
  (setf (alist-get 'alpha default-frame-alist)
        `(,alpha . ,alpha))
  (cl-loop for frame being the frames
           do (set-frame-parameter frame 'alpha `(,alpha . ,alpha))))

(use-package exwm
  :straight t
  :config
  (setq exwm-workspace-number 5)
  (add-hook 'exwm-init-hook #'my/exwm-init)
  (add-hook 'exwm-update-class-hook #'my/exwm-update-class)

  (require 'exwm-randr)
  (exwm-randr-enable)
  (start-process-shell-command "xrandr" nil "~/bin/scripts/screen-layout")
  (when (string= (system-name) "indigo")
    (setq my/exwm-another-monitor "DVI-D-0")
    (setq exwm-randr-workspace-monitor-plist `(2 ,my/exwm-another-monitor 3 ,my/exwm-another-monitor)))

  (setq exwm-workspace-warp-cursor t)
  (setq mouse-autoselect-window t)
  (setq focus-follows-mouse t)

  <<exwm-workspace-config>>
  <<exwm-keybindings>>
  <<exwm-mode-line-config>>
  <<exwm-fixes>>

  (if (my/light-p)
      (my/exwm-set-alpha 100)
    (my/exwm-set-alpha 90))

  (perspective-exwm-mode)
  (exwm-enable))
#+end_src
* i3wm
:PROPERTIES:
:header-args+: :tangle ./.config/i3/config
:END:

| Guix dependency | Disabled |
|-----------------+----------|
| i3-gaps         |          |
| i3lock          | true     |

=i3lock= is disabled because the global one has to be used.

[[https://i3wm.org/][i3wm]] is a manual tiling window manager, which is currently my window manager of choice. I've tried several alternatives, including [[https://xmonad.org/][xmonad]] & [[https://github.com/ch11ng/exwm][EXWM]], +but i3 seems to fit my workflow best+ and decided to switch to EXWM. This section is kept for a few cases when I need to be extra sure that my WM doesn't fail.

[[https://github.com/Airblader/i3][i3-gaps]] is an i3 fork with a few features like window gaps. I like to enable inner gaps when there is at least one container in a workspace.

References:
- [[https://i3wm.org/docs/][i3wm docs]]
- [[https://github.com/Airblader/i3/wiki][i3-gaps wiki]]

** General settings
#+begin_src conf-space
set $mod Mod4
font pango:monospace 10

# Use Mouse+$mod to drag floating windows to their wanted position
floating_modifier $mod

# Move cursor between monitors
mouse_warping output

# Apply XFCE Settings
# exec xfsettingsd
# exec xiccd

# Set screen layout
exec ~/bin/scripts/screen-layout

# Most needed keybindigs
# reload the configuration file
bindsym $mod+Shift+c reload

# restart i3 inplace (preserves your layout/session, can be used to upgrade i3)
bindsym $mod+Shift+r restart

# exit i3 (logs you out of your X session)
bindsym $mod+Shift+e exec "i3-nagbar -t warning -m 'You pressed the exit shortcut. Do you really want to exit i3? This will end your X session.' -b 'Yes, exit i3' 'i3-msg exit'"
#+end_src
** Managing windows
| Guix dependency     |
|---------------------|
| rust-i3-switch-tabs |

Some keybindings for managing windows.

=emacs-i3-integration= is a script to pass some command to Emacs to get a consistent set of keybindings in both i3 and Emacs. Check out [[file:Emacs.org::i3 integration][the section in Emacs.org]] for details.

Kill focused windows
#+begin_src conf-space
bindsym $mod+Shift+q exec emacs-i3-integration kill
#+end_src

Change focus
#+begin_src conf-space
bindsym $mod+h exec emacs-i3-integration focus left
bindsym $mod+j exec emacs-i3-integration focus down
bindsym $mod+k exec emacs-i3-integration focus up
bindsym $mod+l exec emacs-i3-integration focus right

bindsym $mod+Left exec emacs-i3-integration focus left
bindsym $mod+Down exec emacs-i3-integration focus down
bindsym $mod+Up exec emacs-i3-integration focus up
bindsym $mod+Right exec emacs-i3-integration focus right
#+end_src

Move windows around
#+begin_src conf-space
bindsym $mod+Shift+h exec emacs-i3-integration move left
bindsym $mod+Shift+j exec emacs-i3-integration move down
bindsym $mod+Shift+k exec emacs-i3-integration move up
bindsym $mod+Shift+l exec emacs-i3-integration move right

bindsym $mod+Shift+Left exec emacs-i3-integration move left
bindsym $mod+Shift+Down exec emacs-i3-integration move down
bindsym $mod+Shift+Up exec emacs-i3-integration move up
bindsym $mod+Shift+Right exec emacs-i3-integration move right
#+end_src

Split windows
#+begin_src conf-space
bindsym $mod+s exec emacs-i3-integration split h
bindsym $mod+v exec emacs-i3-integration split v
#+end_src

Switch tabs
#+begin_src conf-space
bindsym $mod+period exec i3-switch-tabs right
bindsym $mod+comma exec i3-switch-tabs left
#+end_src

Enter fullscreen mode
#+begin_src conf-space
# enter fullscreen mode for the focused container
bindsym $mod+f fullscreen toggle
bindsym $mod+c fullscreen toggle global
#+end_src

Changing layout
#+begin_src conf-space
bindsym $mod+w layout stacking
bindsym $mod+t layout tabbed
bindsym $mod+e exec emacs-i3-integration layout toggle split
#+end_src

Toggle tiling/floating, switch between tiled and floating windows
#+begin_src conf-space
bindsym $mod+Shift+f floating toggle
bindsym $mod+z focus mode_toggle
#+end_src

Switching outputs
#+begin_src conf-space
bindsym $mod+Tab move workspace to output right
bindsym $mod+q focus output right
#+end_src

Focus parent and child container
#+begin_src conf-space
bindsym $mod+a focus parent
bindsym $mod+Shift+A focus child
#+end_src

Toggle sticky
#+begin_src conf-space
bindsym $mod+Shift+i sticky toggle
#+end_src

Set windows as floating and sticky, move to the top right.
#+begin_src conf-space
bindsym $mod+x floating enable; sticky enable; move position 1220 0; resize set width 700 px
#+end_src
** Workspaces
#+begin_src conf-space
set $w1 "1 🚀"
set $w2 "2 🌍"
set $w3 "3 💬"
set $w4 "4 🛠️️"
set $w7 "7 🛰️"
set $w8 "8 📝"
set $w9 "9 🎵"
set $w10 "10 📦"

bindsym $mod+1 workspace $w1
bindsym $mod+2 workspace $w2
bindsym $mod+3 workspace $w3
bindsym $mod+4 workspace $w4
bindsym $mod+5 workspace 5
bindsym $mod+6 workspace 6
bindsym $mod+7 workspace $w7
bindsym $mod+8 workspace $w8
bindsym $mod+9 workspace $w9
bindsym $mod+0 workspace $w10

# move focused container to workspace
bindsym $mod+Shift+1 move container to workspace $w1
bindsym $mod+Shift+2 move container to workspace $w2
bindsym $mod+Shift+3 move container to workspace $w3
bindsym $mod+Shift+4 move container to workspace $w4
bindsym $mod+Shift+5 move container to workspace 5
bindsym $mod+Shift+6 move container to workspace 6
bindsym $mod+Shift+7 move container to workspace $w7
bindsym $mod+Shift+8 move container to workspace $w8
bindsym $mod+Shift+9 move container to workspace $w9
bindsym $mod+Shift+0 move container to workspace $w10
#+end_src

** Rules
Rules to automatically assign applications to workspaces and do other stuff, like enable floating.

Most apps can be distinguished by a WM class (you can get one with [[https://www.x.org/releases/X11R7.5/doc/man/man1/xprop.1.html][xprop]]), but in some cases it doesn't work, e.g. for terminal applications. In that case rules can be based on a window title, for instance.

However, watch out for the following: rule such as ~for_window [title="ncmpcpp.*"] move to workspace $w9~ will move *any* window with a title starting with =ncmpcpp= to workspace =$w9=. For instance, it moves your browser when you google "ncmpcpp".

#+begin_src conf-space
assign [class="Emacs"] $w1
assign [class="qutebrowser"] $w2
assign [class="firefox"] $w2
assign [class="VK"] $w3
assign [class="Slack"] $w3
assign [class="discord"] $w3
assign [class="TelegramDesktop"] $w3
assign [class="Postman"] $w4
assign [class="Chromium-browse"] $w4
assign [class="chromium"] $w4
assign [class="google-chrome"] $w4
assign [title="Vue Developer Tools"] $w4
assign [class="Google Play Music Desktop Player"] $w9
assign [class="jetbrains-datagrip"] $w4
assign [class="zoom"] $w7
assign [class="skype"] $w7
assign [class="Mailspring"] $w8
assign [class="Thunderbird"] $w8
assign [class="Joplin"] $w8
assign [class="keepassxc"] $w10

for_window [title="VirtScreen"] floating enable

for_window [title="ncmpcpp.*"] move to workspace $w9
for_window [title="newsboat.*"] move to workspace $w9
for_window [title=".*run_wego"] move to workspace $w9
for_window [class="cinnamon-settings*"] floating enable
for_window [title="Picture-in-Picture"] sticky enable
for_window [window_role="GtkFileChooserDialog"] resize set width 1000 px height 800 px
for_window [window_role="GtkFileChooserDialog"] move position center
#+end_src
** Scratchpad
Scratch terminal, inspired by [[https://www.youtube.com/watch?v=q-l7DnDbiiU][this Luke Smith's video]].
*** Launch script
First of all, we have to distinguish a scratchpad terminal from a normal one. To do that, one can create st with a required classname.

Then, it would be cool not to duplicate scratchpads, so the following script first looks for a window with a created classname. If it exists, the script just toggles the scratchpad visibility. Otherwise, a new instance of a window is created.
#+begin_src bash :tangle ./bin/scripts/dropdown
CLASSNAME="dropdown_tmux"
COMMAND="alacritty --class $CLASSNAME -e tmux new-session -s $CLASSNAME"
pid=$(xdotool search --classname "dropdown_tmux")
if [[ ! -z $pid  ]]; then
    i3-msg scratchpad show
else
    setsid -f ${COMMAND}
fi
#+end_src
*** i3 config
#+begin_src conf-space
# Scratchpad
for_window [instance="dropdown_*"] floating enable
for_window [instance="dropdown_*"] move scratchpad
for_window [instance="dropdown_*"] sticky enable
for_window [instance="dropdown_*"] scratchpad show
for_window [instance="dropdown_*"] move position center

bindsym $mod+u exec ~/bin/scripts/dropdown
#+end_src
** Gaps & borders
The main reason to use i3-gaps
#+begin_src conf-space
# Borders
# for_window [class=".*"] border pixel 0
default_border pixel 3
hide_edge_borders both

# Gaps
set $default_inner 10
set $default_outer 0

gaps inner $default_inner
gaps outer $default_outer

smart_gaps on
#+end_src
*** Keybindings
#+begin_src conf-space
mode "inner gaps" {
    bindsym plus gaps inner current plus 5
    bindsym minus gaps inner current minus 5
    bindsym Shift+plus gaps inner all plus 5
    bindsym Shift+minus gaps inner all minus 5
    bindsym 0 gaps inner current set 0
    bindsym Shift+0 gaps inner all set 0

    bindsym r gaps inner current set $default_inner
    bindsym Shift+r gaps inner all set $default_inner

    bindsym Return mode "default"
    bindsym Escape mode "default"
}

mode "outer gaps" {
    bindsym plus gaps outer current plus 5
    bindsym minus gaps outer current minus 5
    bindsym Shift+plus gaps outer all plus 5
    bindsym Shift+minus gaps outer all minus 5
    bindsym 0 gaps outer current set 0
    bindsym Shift+0 gaps outer all set 0

    bindsym r gaps outer current set $default_outer
    bindsym Shift+r gaps outer all set $default_outer

    bindsym Return mode "default"
    bindsym Escape mode "default"
}

bindsym $mod+g mode "inner gaps"
bindsym $mod+Shift+g mode "outer gaps"
#+end_src
** Move & resize windows
| Guix dependency             |
|-----------------------------|
| python-i3-balance-workspace |

A more or less standard set of keybindings to move & resize floating windows. Just be careful to always make a way to return from these new modes, otherwise you'd end up in a rather precarious situation.

[[https://github.com/atreyasha/i3-balance-workspace][i3-balance-workspace]] is a small Python package to balance the i3 windows, but for the Emacs integration I also want this button to balance the Emacs windows, so here is a small script to do just that.

#+begin_src bash :tangle ~/bin/scripts/i3-emacs-balance-windows
if [[ $(xdotool getactivewindow getwindowname) =~ ^emacs(:.*)?@.* ]]; then
    emacsclient -e "(balance-windows)" &
fi
i3_balance_workspace
#+end_src

#+begin_src conf-space
mode "resize" {

    bindsym h exec emacs-i3-integration resize shrink width 10 px or 10 ppt
    bindsym j exec emacs-i3-integration resize grow height 10 px or 10 ppt
    bindsym k exec emacs-i3-integration resize shrink height 10 px or 10 ppt
    bindsym l exec emacs-i3-integration resize grow width 10 px or 10 ppt

    bindsym Shift+h exec emacs-i3-integration resize shrink width 100 px or 100 ppt
    bindsym Shift+j exec emacs-i3-integration resize grow height 100 px or 100 ppt
    bindsym Shift+k exec emacs-i3-integration resize shrink height 100 px or 100 ppt
    bindsym Shift+l exec emacs-i3-integration resize grow width 100 px or 100 ppt

    # same bindings, but for the arrow keys
    bindsym Left  exec emacs-i3-integration resize shrink width 10 px or 10 ppt
    bindsym Down  exec emacs-i3-integration resize grow height 10 px or 10 ppt
    bindsym Up    exec emacs-i3-integration resize shrink height 10 px or 10 ppt
    bindsym Right exec emacs-i3-integration resize grow width 10 px or 10 ppt

    bindsym Shift+Left  exec emacs-i3-integration resize shrink width 100 px or 100 ppt
    bindsym Shift+Down  exec emacs-i3-integration resize grow height 100 px or 100 ppt
    bindsym Shift+Up    exec emacs-i3-integration resize shrink height 100 px or 100 ppt
    bindsym Shift+Right exec emacs-i3-integration resize grow width 100 px or 100 ppt

    bindsym equal exec i3-emacs-balance-windows

    # back to normal: Enter or Escape
    bindsym Return mode "default"
    bindsym Escape mode "default"
}

bindsym $mod+r mode "resize"

mode "move" {
    bindsym $mod+Tab focus right

    bindsym Left  move left
    bindsym Down  move down
    bindsym Up    move up
    bindsym Right move right

    bindsym h     move left
    bindsym j     move down
    bindsym k     move up
    bindsym l     move right

    # back to normal: Enter or Escape
    bindsym Return mode "default"
    bindsym Escape mode "default"
}

bindsym $mod+m mode "move" focus floating
#+end_src
** OFF (OFF) Intergration with dmenu
[[https://tools.suckless.org/dmenu/][dmenu]] is a dynamic menu program for X. I've opted out of using it in favour of rofi, but here is a relevant bit of config.

Scripts are located in the =bin/scripts= folder.
#+begin_src conf-space :tangle no
# dmenu
bindsym $mod+d exec i3-dmenu-desktop --dmenu="dmenu -l 10"
bindsym $mod+apostrophe mode "dmenu"

mode "dmenu" {
    bindsym d exec i3-dmenu-desktop --dmenu="dmenu -l 10"; mode default
    bindsym p exec dmenu_run -l 10; mode default
    bindsym m exec dmenu-man; mode default
    bindsym b exec dmenu-buku; mode default
    bindsym f exec dmenu-explore; mode default
    bindsym t exec dmenu-tmuxp; mode default
    bindsym Escape mode "default"
}

bindsym $mod+b exec --no-startup-id dmenu-buku
#+end_src
** Integration with rofi
Keybindings to launch [[https://github.com/davatorium/rofi][rofi]]. For more detail, look the [[*Rofi]] section.
#+begin_src conf-space
bindsym $mod+p exec "rofi -modi 'drun,run' -show drun"
bindsym $mod+b exec --no-startup-id rofi-buku-mine
bindsym $mod+minus exec rofi-pass
bindsym $mod+equal exec rofimoji

bindsym $mod+apostrophe mode "rofi"

mode "rofi" {
    bindsym d exec "rofi -modi 'drun,run' -show drun"
    bindsym m exec rofi-man; mode default
    bindsym b exec rofi-buku-mine; mode default
    bindsym k exec rofi-pass; mode default
    bindsym Escape mode "default"
}
#+end_src
** Launching apps & misc keybindings
I prefer to use a separate mode to launch most of my apps, with some exceptions.
*** Apps
#+begin_src conf-space
# Launch apps
# start a terminal at workspace 1
bindsym $mod+Return exec "i3-msg 'workspace 1 🚀; exec alacritty'"

bindsym $mod+i exec "copyq menu"
bindsym $mod+Shift+x exec "i3lock -f -i /home/pavel/Pictures/lock-wallpaper.png"

bindsym $mod+semicolon mode "apps"

mode "apps" {
    bindsym Escape mode "default"
    bindsym b exec firefox; mode default
    bindsym v exec vk; mode default
    bindsym s exec slack-wrapper; mode default;
    bindsym d exec "flatpak run com.discordapp.Discord"; mode default;
    bindsym m exec "alacritty -e ncmpcpp"; mode default
    bindsym c exec "copyq toggle"; mode default
    bindsym k exec "keepassxc"; mode default
    # bindsym e exec mailspring; mode default
    bindsym a exec emacs; mode default
    bindsym n exec "alacritty -e newsboat"; mode default
    bindsym w exec "alacritty /home/pavel/bin/scripts/run_wego"; mode default
    # bindsym a exec emacsclient -c; mode default
    # bindsym Shift+a exec emacs; mode default
}
#+end_src
*** Media controls & brightness
#+begin_src conf-space
# Pulse Audio controls
bindsym XF86AudioRaiseVolume exec --no-startup-id "ponymix increase 5 --max-volume 150"
bindsym XF86AudioLowerVolume exec --no-startup-id "ponymix decrease 5 --max-volume 150"
bindsym XF86AudioMute exec --no-startup-id "ponymix toggle"

exec --no-startup-id xmodmap -e 'keycode 135 = Super_R' && xset -r 135
bindsym $mod+F2 exec --no-startup-id "ponymix increase 5"
bindsym $mod+F3 exec --no-startup-id "ponymix decrease 5"

# Media player controls
bindsym XF86AudioPlay exec mpc toggle
bindsym XF86AudioPause exec mpc pause
bindsym XF86AudioNext exec mpc next
bindsym XF86AudioPrev exec mpc prev

# Screen brightness
bindsym XF86MonBrightnessUp exec light -A 5
bindsym XF86MonBrightnessDown exec light -U 5
#+end_src
*** Screenshots
#+begin_src conf-space
# Screenshots
bindsym --release Print exec "flameshot gui"
bindsym --release Shift+Print exec "xfce4-screenshooter"
#+end_src
** Colors
Application of the XResources theme to the WM.
#+begin_src conf-space
exec xrdb -merge $HOME/.Xresources

# Colors
set_from_resource $bg-color            background
set_from_resource $active-color        color4
set_from_resource $inactive-bg-color   color8
set_from_resource $text-color          foreground
set_from_resource $inactive-text-color color7
set_from_resource $urgent-bg-color     color1
set_from_resource $urgent-text-color   color0

# window colors
#                       border              background         text                 indicator       child border
client.focused          $active-color       $bg-color          $text-color          $bg-color       $active-color
client.unfocused        $bg-color           $inactive-bg-color $inactive-text-color $bg-color       $bg-color
client.focused_inactive $active-color       $inactive-bg-color $inactive-text-color $bg-color       $bg-color
client.urgent           $urgent-bg-color    $urgent-bg-color   $urgent-text-color   $bg-color       $urgent-bg-color
#+end_src
** OFF (OFF) i3blocks
I've opted out of i3bar & [[https://github.com/vivien/i3blocks][i3blocks]] for [[https://github.com/polybar/polybar][polybar]]
#+begin_src conf-space :tangle no
bar {
    status_command i3blocks -c ~/.config/i3/i3blocks.conf
    i3bar_command i3bar
    font pango:monospace 12
    output HDMI-A-0
    tray_output none
    colors {
        background $bg-color
        separator #757575
        #                  border             background         text
        focused_workspace  $bg-color          $bg-color          $text-color
        inactive_workspace $inactive-bg-color $inactive-bg-color $inactive-text-color
        urgent_workspace   $urgent-bg-color   $urgent-bg-color   $urgent-text-color
    }
}

bar {
    status_command i3blocks -c ~/.config/i3/i3blocks.conf
    i3bar_command i3bar
    font pango:monospace 10
    output DVI-D-0
    colors {
        background $bg-color
        separator #757575
        #                  border             background         text
        focused_workspace  $bg-color          $bg-color          $text-color
        inactive_workspace $inactive-bg-color $inactive-bg-color $inactive-text-color
        urgent_workspace   $urgent-bg-color   $urgent-bg-color   $urgent-text-color
    }
}
#+end_src
** Keyboard Layout
A script to set Russian-English keyboard layout:
#+begin_src bash :tangle ./bin/scripts/set_layout
setxkbmap -layout us,ru
setxkbmap -model pc105 -option 'grp:win_space_toggle' -option 'grp:alt_shift_toggle'
#+end_src

A script to toggle the layout
#+begin_src bash :tangle ./bin/scripts/toggle_layout
if setxkbmap -query | grep -q us,ru; then
    setxkbmap -layout us
    setxkbmap -option
else
    setxkbmap -layout us,ru
    setxkbmap -model pc105 -option 'grp:win_space_toggle' -option 'grp:alt_shift_toggle'
fi
#+end_src

And the relevant i3 settings:
#+begin_src conf-space
# Layout
exec_always --no-startup-id set_layout
bindsym $mod+slash exec toggle_layout
#+end_src
** Autostart
#+begin_src conf-space
# Polybar
exec_always --no-startup-id "bash /home/pavel/bin/polybar.sh"

# Wallpaper
exec_always "feh --bg-fill ~/Pictures/wallpaper.jpg"

# Picom
exec picom

# Keynav
exec keynav

# Applets
exec --no-startup-id nm-applet
# exec --no-startup-id /usr/bin/blueman-applet

exec shepherd
exec dunst
exec copyq
exec "xmodmap ~/.Xmodmap"
# exec "xrdb -merge ~/.Xresources"
# exec "bash ~/bin/autostart.sh"
#+end_src
* Polybar
:PROPERTIES:
:header-args:conf-windows: :tangle ./.config/polybar/config :comments link
:END:

| Category        | Guix dependency | Description |
|-----------------+-----------------+-------------|
| desktop-polybar | polybar         | statusbar   |

[[https://github.com/polybar/polybar][Polybar]] is a nice-looking, WM-agnostic statusbar program.

Don't forget to install the Google Noto Color Emoji font. Guix package with all Noto fonts is way too large.

References:
- [[https://github.com/polybar/polybar/wiki][polybar docs]]

** General settings
This is the most +crazy+ advanced piece of my literate configuration so far.

My polybar has:
- colors from the general color theme;
- powerline-ish decorations between modules.

*** Colors
+The "colors" part is straightforward enough+. Once upon the time it was so...

Polybar can use =Xresources=, but the problem with that is you're supposed to use =colorX= as foreground, not as background. This usually works fine with dark themes from =doom-themes=, but not so much with high-contrast =modus-themes=.

So...
#+NAME: get-polybar-colors
#+begin_src emacs-lisp :var table=colors :tangle no
(mapconcat
 (lambda (elem)
   (format "%s = %s" (car elem) (cdr elem)))
 (append
  (nreverse
   (cl-reduce
    (lambda (acc name)
      (let* ((color (my/color-value name)))
        (unless (member name '("black"))
          (setq color (ct-iterate
                       color
                       (lambda (c) (ct-edit-hsl-l-inc c 2))
                       (lambda (c)
                         (ct-light-p c 65)))))
        (push (cons name color) acc)
        (push (cons (format "light-%s" name)
                    (ct-edit-lab-l-inc
                     color
                     my/alpha-for-light))
              acc))
      acc)
    '("black" "red" "green" "yellow" "blue" "magenta" "cyan" "white")
    :initial-value nil))
  `(("background" . ,(or (my/color-value 'bg-active)
                         (my/color-value 'bg)))
    ("foreground" . "#000000")))
 "\n")
#+end_src

#+RESULTS: get-polybar-colors
#+begin_example
black = #292D3E
light-black = #383c4e
red = #f18388
light-red = #ff959a
green = #c3e88d
light-green = #d6fc9f
yellow = #ffcb6b
light-yellow = #ffde7d
blue = #82aaff
light-blue = #96bcff
magenta = #c792ea
light-magenta = #daa4fe
cyan = #89DDFF
light-cyan = #9df0ff
white = #EEFFFF
light-white = #f1ffff
background = #292D3E
foreground = #000000
#+end_example

#+begin_src conf-windows :noweb yes
[colors]
<<get-polybar-colors()>>
#+end_src
*** Glyph settings
As for the module decorations though, I find it ironic that with all this fancy rendering around I have to resort to Unicode glyphs.

Anyhow, the approach is to put a glyph between two blocks like this:
#+begin_example
block1  block2
#+end_example

And set the foreground and background colors like that:
|            | block1 | glyph | block2  |
|------------+--------+-------+---------|
| foreground | F1     | B2    | F2      |
| background | B1     | B1    | B2      |

So, that's a start. First, let's define the glyph symbols in the polybar config:
#+begin_src conf-windows
[glyph]
gleft = 
gright = 
#+end_src
*** Defining modules
As we want to interweave polybar modules with these glyphs in the right order and with the right colors, it is reasonable to define a single source of truth:
#+NAME: polybar_modules
| Index | Module      | Color         | Glyph |
|-------+-------------+---------------+-------|
|     1 | pulseaudio  | light-magenta | +     |
|     2 | mpd         | magenta       | +     |
|     9 | battery     | light-cyan    | +     |
|     3 | cpu         | cyan          | +     |
|     4 | ram-memory  | light-green   | +     |
|     5 | swap-memory | green         | +     |
|     6 | bandwidth   | light-red     | +     |
|     7 | openvpn     | light-red     |       |
|     8 | xkeyboard   | red           | +     |
|    10 | weather     | light-yellow  | +     |
|    12 | sun         | yellow        | +     |
|    13 | aw-afk      | light-blue    | +     |
|    14 | date        | blue          | +     |

Also excluding some modules from certain monitors, which for now is about excluding =battery= from the monitors of my desktop PC:

#+NAME: polybar_modules_exclude
| Monitor  | Exclude |
|----------+---------|
| DVI-D-0  | battery |
| HDMI-A-0 | battery |

Another thing we need to do is to set the color of modules in accordance with the =polybar_modules= table. The background can be determined from the =Color= column with the following code block:
#+NAME: get-polybar-bg
#+begin_src emacs-lisp :var table=polybar_modules module="pulseaudio"
(format
 "${colors.%s}"
 (nth
  2
  (seq-find
   (lambda (el) (string-equal (nth 1 el) module))
   table)))
#+end_src

That block is meant to be invoked in each module definition.

*** Generating glyphs
To generate the required set of glyphs, we need a glyph for every possible combination of adjacent colors that can occur in polybar.

Most of these combinations can be inferred from the =polybar_modules= table, the rest are defined in another table:
#+NAME: polybar_extra_colors
| Color 1    | Color 2       |
|------------+---------------|
| background | white         |
| background | light-magenta |
| blue       | background    |

#+NAME: polybar-generate-glyphs
#+begin_src emacs-lisp :var table=polybar_modules exclude-table=polybar_modules_exclude extra=polybar_extra_colors
(let* ((monitors
        (thread-last
          exclude-table
          (seq-map (lambda (el) (nth 0 el)))
          (seq-uniq)))
       (exclude-combinations
        (seq-map
         (lambda (monitor)
           (seq-map
            (lambda (el) (nth 1 el))
            (seq-filter
             (lambda (el) (and (string-equal (nth 0 el) monitor)
                               (nth 1 el)))
             exclude-table)))
         `(,@monitors "")))
       (module-glyph-combinations
        (thread-last
          exclude-combinations
          (seq-map
           (lambda (exclude)
             (thread-last
               table
               (seq-filter
                (lambda (elt)
                  (not (or
                        (member (nth 1 elt) exclude)
                        (not (string-equal (nth 3 elt) "+")))))))))
          (seq-uniq)))
       (color-changes nil))
  (dolist (e extra)
    (add-to-list
     'color-changes
     (concat (nth 0 e) "--" (nth 1 e))))
  (dolist (comb module-glyph-combinations)
    (dotimes (i (1- (length comb)))
      (add-to-list
       'color-changes
       (concat (nth 2 (nth i comb))
               "--"
               (nth 2 (nth (1+ i) comb))))))
  (mapconcat
   (lambda (el)
     (let ((colors (split-string el "--")))
       (format "
[module/glyph-%s--%s]
type = custom/text
content-background = ${colors.%s}
content-foreground = ${colors.%s}
content = ${glyph.gright}
content-font = 5"
               (nth 0 colors)
               (nth 1 colors)
               (nth 0 colors)
               (nth 1 colors))))
   color-changes
   "\n"))
#+end_src

Here's a rough outline of how the code works:
- =monitors= is a list of unique monitors in =exclude-table=
- =exclude-combilnations= is a list of lists of module names to be excluded for each monitor
- =module-glyphs-combinations= is a list of lists of actual modules for each monitor
- =color-changes= is a list of unique adjacent colors across modules in all monitors

Finally, =color-changes= is used to generate glyph modules that look like this:
#+begin_src conf-windows :tangle no
[module/glyph-light-cyan--cyan]
type = custom/text
content-background = ${colors.light-cyan}
content-foreground = ${colors.cyan}
content = ${glyph.gright}
content-font = 5
#+end_src

As of now, 15 of such modules is generated.

Include this to the polybar config itself:
#+begin_src conf-windows :noweb yes
<<polybar-generate-glyphs()>>
#+end_src
*** Generating set of modules
To configure polybar itself, we need to generate a set of modules for each monitor.

The parameters here, excluding the two required tables, are:
- =monitor= - the current monitor on which to filter out the blocks by the =polybar_modules_exclude= table,
- =first-color= - the first color of the first glyph,
- =last-color= - the second color of the last glyph.

#+NAME: polybar-generate-modules
#+begin_src emacs-lisp :var table=polybar_modules exclude-table=polybar_modules_exclude monitor="DVI-D-0" first-color="background" last-color="background"
(let* ((exclude-modules
        (thread-last
          exclude-table
          (seq-filter (lambda (el) (string-equal (nth 0 el) monitor)))
          (seq-map (lambda (el) (nth 1 el)))))
       (modules
        (thread-last
          table
          (seq-filter (lambda (el) (not (member (nth 1 el) exclude-modules))))))
       (prev-color first-color)
       (ret nil))
  (concat
   (mapconcat
    (lambda (el)
      (apply
       #'concat
       (list
        (when (string-equal (nth 3 el) "+")
          (setq ret (format "glyph-%s--%s " prev-color (nth 2 el)))
          (setq prev-color (nth 2 el))
          ret)
        (nth 1 el))))
    modules
    " ")
   (unless (string-empty-p last-color) (format " glyph-%s--%s " prev-color last-color))))
#+end_src

The polybar config doesn't support conditional statements, but it does support environment variables, so I pass the parameters from in the launch script.

*** Global bar config
Global bar configuration.

Monitor config and base colors.

#+begin_src conf-windows
[bar/mybar]
monitor = ${env:MONITOR:}
width = 100%
height = ${env:HEIGHT:27}
fixed-center = false
bottom=true

background = ${colors.background}
foreground = ${colors.black}
#+end_src

Some geometry settings. These are set this way to make glyphs look the way they should

#+begin_src conf-windows
; line-size = 3
line-color = #f00

padding = 0

module-margin-left = 0
module-margin-right = 0
margin-bottom = 0
margin-top = 0

; underline-size = 0
border-size = 0

offset-x = 0
offset-y = 0
radius = 0.0
#+end_src

Fonts
#+begin_src conf-windows
; font-0 = ${env:FONT0:pango:monospace:size=10;1}
; font-1 = ${env:FONT1:NotoEmoji:scale=10:antialias=false;0}
; font-2 = ${env:FONT2:fontawesome:pixelsize=10;1}
; font-3 = ${env:FONT3:JetBrains Mono Nerd Font:monospace:size=10;1}

font-0 = pango:monospace:size=13;2
font-1 = NotoEmoji:scale=10:antialias=false;1
font-2 = fontawesome:pixelsize=13;3
font-3 = JetBrains Mono Nerd Font:monospace:size=13;4
font-4 = JetBrains Mono Nerd Font:monospace:size=17;4
#+end_src

Modules. Because I sometimes set up different blocks on different monitors, they are set via environment variables.
#+begin_src conf-windows
modules-left = i3
; modules-center = test
modules-right = ${env:RIGHT_BLOCKS}

tray-position = ${env:TRAY:right}
tray-padding = 0
tray-maxsize = 16
tray-background = ${colors.background}

wm-restack = i3
; override-redirect = true

scroll-up = i3wm-wsnext
scroll-down = i3wm-wsprev

; cursor-click = pointer
; cursor-scroll = ns-resize
#+end_src

Misc settings.
#+begin_src conf-windows
[settings]
screenchange-reload = true
compositing-background = source
compositing-foreground = over
compositing-overline = over
compositing-underline = over
compositing-border = over

[global/wm]
margin-top = 0
margin-bottom = 0
#+end_src
*** Launch script
The script below allows me to:
- have different blocks on my two different-sized monitors and my laptop;
- have different settings on my desktop PC and laptop;

#+begin_src bash :tangle ./bin/polybar.sh :noweb yes
hostname=$(hostname)
# Settings varying on the hostname
if [ "$hostname" = "azure" ]; then
    TRAY_MONITOR="eDP-1"
elif [ "$hostname" = "eminence" ]; then
    if xrandr --query | grep " connected" | cut -d" " -f1 | grep -q "HDMI-A-0"; then
        TRAY_MONITOR="HDMI-A-0"
    else
        TRAY_MONITOR="eDP"
    fi
elif [ "$hostname" = "iris"]; then
    TRAY_MONITOR="HDMI-1"
else
    TRAY_MONITOR="HDMI-A-0"
fi

# Setting varying on the monitor
declare -A FONT_SIZES=(
    ["eDP"]="13"
    ["eDP-1"]="13"
    ["DVI-D-0"]="13"
    ["HDMI-A-0"]="13"
    ["HDMI-1"]="13"
)
declare -A EMOJI_SCALE=(
    ["eDP"]="9"
    ["eDP-1"]="9"
    ["DVI-D-0"]="10"
    ["HDMI-A-0"]="10"
    ["HDMI-1"]="10"
)
declare -A BAR_HEIGHT=(
    ["eDP"]="29"
    ["eDP-1"]="29"
    ["DVI-D-0"]="29"
    ["HDMI-A-0"]="29"
    ["HDMI-1"]="29"
)
declare -A BLOCKS=(
    ["eDP"]="<<polybar-generate-modules(monitor="eDP")>>"
    ["eDP-1"]="<<polybar-generate-modules(monitor="eDP-1")>>"
    ["DVI-D-0"]="<<polybar-generate-modules(monitor="DVI-D-0")>>"
    ["HDMI-A-0"]="<<polybar-generate-modules(monitor="HDMI-A-0")>>"
    ["HDMI-1"]="<<polybar-generate-modules(monitor="HDMI-1")>>"
)

# Geolocation for some modules
export LOC="SPB"

# export IPSTACK_API_KEY=$(pass show My_Online/APIs/ipstack | head -n 1)

pkill polybar
for m in $(xrandr --query | grep " connected" | cut -d" " -f1); do
    export MONITOR=$m
    if [ "$MONITOR" = "$TRAY_MONITOR" ]; then
        export TRAY="right"
    else
        export TRAY="none"
    fi
    SIZE=${FONT_SIZES[$MONITOR]}
    SCALE=${EMOJI_SCALE[$MONITOR]}
    if [[ -z "$SCALE" ]]; then
        continue
    fi
    # export FONT0="pango:monospace:size=$SIZE;1"
    # export FONT1="NotoEmoji:scale=$SCALE:antialias=false;1"
    # export FONT2="fontawesome:pixelsize=$SIZE;1"
    # export FONT3="JetBrains Mono Nerd Font:monospace:size=15;1"
    export HEIGHT=${BAR_HEIGHT[$MONITOR]}
    export RIGHT_BLOCKS=${BLOCKS[$MONITOR]}
    polybar mybar &
done
#+end_src

** Individual modules
Some of the custom modules below use Org mode noweb to evaluate colors, because it's faster than querying =xrdb= at runtime. I wish I could reference polybar values there, but [[https://github.com/polybar/polybar/issues/615][it looks like this is impossible]].

If you want to copy something, you can go to the [[file:bin/polybar/][bin/polybar]] folder.

*** pulseaudio
PulseAudio status
#+begin_src conf-windows :noweb yes
[module/pulseaudio]
type = internal/pulseaudio
use-ui-max = true

bar-volume-width = 7
; bar-volume-foreground-0 = ${colors.white}
; bar-volume-foreground-1 = ${colors.yellow}
; bar-volume-foreground-2 = ${colors.yellow}
; bar-volume-foreground-3 = ${colors.blue}
; bar-volume-foreground-4 = ${colors.blue}
; bar-volume-foreground-5 = ${colors.green}
; bar-volume-foreground-6 = ${colors.green}
bar-volume-gradient = false
bar-volume-indicator = |
bar-volume-indicator-font = 2
bar-volume-fill = ─
bar-volume-fill-font = 2
bar-volume-empty = ─
bar-volume-empty-font = 2
; bar-volume-empty-foreground = ${colors.light-white}

format-volume = ♪ <ramp-volume> <label-volume>
label-volume = %percentage%%

ramp-volume-0 = ▁
ramp-volume-1 = ▂
ramp-volume-2 = ▃
ramp-volume-3 = ▄
ramp-volume-4 = ▅
ramp-volume-5 = ▆
ramp-volume-6 = ▇
ramp-volume-7 = █

format-muted = ♪ <label-muted>
label-muted = MUTE

format-volume-background = <<get-polybar-bg(module="pulseaudio")>>
format-muted-background = <<get-polybar-bg(module="pulseaudio")>>
format-volume-foreground = ${colors.foreground}
format-muted-foreground = ${colors.foreground}

; format-volume-underline = ${colors.white}
; format-muted-underline = ${colors.light-black}
#+end_src

*** mpd
[[https://www.musicpd.org/][Music Player Daemon]] status
#+begin_src conf-windows :noweb yes
[module/mpd]
type = internal/mpd

format-playing = <toggle> <label-time> <label-song>
format-paused = <toggle> <label-time> <label-song>
format-stopped = " "
label-song = [%album-artist%] %title%
label-time = %elapsed%/%total%

label-song-maxlen = 30
label-song-ellipsis = true

; format-playing-underline = ${colors.yellow}
; format-paused-underline = ${colors.yellow}
; format-stopped-underline = ${colors.yellow}

format-playing-background = <<get-polybar-bg(module="mpd")>>
format-paused-background = <<get-polybar-bg(module="mpd")>>
format-stopped-background = <<get-polybar-bg(module="mpd")>>
format-playing-foreground = ${colors.foreground}
format-paused-foreground = ${colors.foreground}
format-stopped-foreground = ${colors.foreground}

label-separator = 0
separator-foreground = ${colors.red}

icon-pause = 
icon-play = 
icon-stop = 
icon-prev = 1
icon-next = 2
#+end_src

*** cpu
CPU usage
#+begin_src conf-windows :noweb yes
[module/cpu]
type = internal/cpu
format = " <label>"
label = %percentage%%
format-background = <<get-polybar-bg(module="cpu")>>
format-foreground = ${colors.foreground}
#+end_src
*** ram-memory
RAM usage
#+begin_src conf-windows :noweb yes
[module/ram-memory]
type = internal/memory
interval = 10

ramp-used-0 = ▁
ramp-used-1 = ▂
ramp-used-2 = ▃
ramp-used-3 = ▄
ramp-used-4 = ▅
ramp-used-5 = ▆
ramp-used-6 = ▇
ramp-used-7 = █

format =  <label>
label=%gb_used:.1f%

; format-underline = ${colors.blue}
format-background = <<get-polybar-bg(module="ram-memory")>>
format-foreground = ${colors.foreground}
#+end_src

*** swap-memory
Swap usage
#+begin_src conf-windows :noweb yes
[module/swap-memory]
type = internal/memory
interval = 10

label= %gb_swap_used:.1f%
format-background = <<get-polybar-bg(module="swap-memory")>>
format-foreground = ${colors.foreground}
#+end_src

*** network
Upload/download speed

UPD <2022-07-24 Sun>: Somehow it doesn't work with my current internet setup.

#+begin_src conf-windows :noweb yes
[module/network]
type = internal/network
interval = 1

interface = ${env:WLAN_INTERFACE}

; format-connected = [<ramp-signal>] <label-connected>

label-connected = ↓ %downspeed% ↑ %upspeed%
label-disconnected = X

; format-connected-underline = ${colors.green}
; format-disconnected-underline = ${colors.red}
format-connected-background = <<get-polybar-bg(module="network")>>
format-disconnected-background = <<get-polybar-bg(module="network")>>
format-connected-foreground = ${colors.foreground}
format-disconnected-foreground = ${colors.foreground}

ramp-signal-0 = 0
ramp-signal-1 = 1
ramp-signal-2 = 2
ramp-signal-3 = 3
ramp-signal-4 = 4
ramp-signal-5 = 5
#+end_src

*** bandwidth
[[file:bin/polybar/bandwidth3.sh][My adaption]] of an i3blocks script called "[[https://github.com/vivien/i3blocks-contrib/tree/master/bandwidth3][bandwidth3]]". I've only changed some defaults that are awkward to set with polybar.

#+begin_src conf-windows :noweb yes
[module/bandwidth]
type = custom/script
exec = /home/pavel/bin/polybar/bandwidth3.sh
interval = 0
tail = true

format-background = <<get-polybar-bg(module="bandwidth")>>
format-foreground = ${colors.foreground}
#+end_src

#+begin_src bash :tangle ./bin/polybar/bandwidth3.sh
# Copyright (C) 2015 James Murphy
# Copyright (C) 2022 Pavel Korytov
# Licensed under the terms of the GNU GPL v2 only.

iface="${BLOCK_INSTANCE}"
iface="${IFACE:-$iface}"
dt="${DT:-1}"
unit="${UNIT:-KB}"
printf_command="${PRINTF_COMMAND:-"printf \"↓ %-2.1f ↑ %2.1f [%s/s]\\n\", rx, wx, unit;"}"

function default_interface {
    ip route | awk '/^default via/ {print $5; exit}'
}

function check_proc_net_dev {
    if [ ! -f "/proc/net/dev" ]; then
        echo "/proc/net/dev not found"
        exit 1
    fi
}

function list_interfaces {
    check_proc_net_dev
    echo "Interfaces in /proc/net/dev:"
    grep -o "^[^:]\\+:" /proc/net/dev | tr -d " :"
}

while getopts i:t:u:p:lh opt; do
    case "$opt" in
        i) iface="$OPTARG" ;;
        t) dt="$OPTARG" ;;
        u) unit="$OPTARG" ;;
        p) printf_command="$OPTARG" ;;
        l) list_interfaces && exit 0 ;;
        h) printf \
"Usage: bandwidth3 [-i interface] [-t time] [-u unit] [-p printf_command] [-l] [-h]
Options:
-i\tNetwork interface to measure. Default determined using \`ip route\`.
-t\tTime interval in seconds between measurements. Default: 3
-u\tUnits to measure bytes in. Default: Mb
\tAllowed units: Kb, KB, Mb, MB, Gb, GB, Tb, TB
\tUnits may have optional it/its/yte/ytes on the end, e.g. Mbits, KByte
-p\tAwk command to be called after a measurement is made.
\tDefault: printf \"<span font='FontAwesome'>  </span>%%-5.1f/%%5.1f %%s/s\\\\n\", rx, wx, unit;
\tExposed variables: rx, wx, tx, unit, iface
-l\tList available interfaces in /proc/net/dev
-h\tShow this help text
" && exit 0;;
    esac
done

check_proc_net_dev

iface="${iface:-$(default_interface)}"
while [ -z "$iface" ]; do
    echo No default interface
    sleep "$dt"
    iface=$(default_interface)
done

case "$unit" in
    Kb|Kbit|Kbits)   bytes_per_unit=$((1024 / 8));;
    KB|KByte|KBytes) bytes_per_unit=$((1024));;
    Mb|Mbit|Mbits)   bytes_per_unit=$((1024 * 1024 / 8));;
    MB|MByte|MBytes) bytes_per_unit=$((1024 * 1024));;
    Gb|Gbit|Gbits)   bytes_per_unit=$((1024 * 1024 * 1024 / 8));;
    GB|GByte|GBytes) bytes_per_unit=$((1024 * 1024 * 1024));;
    Tb|Tbit|Tbits)   bytes_per_unit=$((1024 * 1024 * 1024 * 1024 / 8));;
    TB|TByte|TBytes) bytes_per_unit=$((1024 * 1024 * 1024 * 1024));;
    *) echo Bad unit "$unit" && exit 1;;
esac

scalar=$((bytes_per_unit * dt))
init_line=$(cat /proc/net/dev | grep "^[ ]*$iface:")
if [ -z "$init_line" ]; then
    echo Interface not found in /proc/net/dev: "$iface"
    exit 1
fi

init_received=$(awk '{print $2}' <<< $init_line)
init_sent=$(awk '{print $10}' <<< $init_line)

(while true; do cat /proc/net/dev; sleep "$dt"; done) |\
    stdbuf -oL grep "^[ ]*$iface:"|\
    awk -v scalar="$scalar" -v unit="$unit" -v iface="$iface" '
BEGIN{old_received='"$init_received"';old_sent='"$init_sent"'}
{
    received=$2
    sent=$10
    rx=(received-old_received)/scalar;
    wx=(sent-old_sent)/scalar;
    tx=rx+wr;
    old_received=received;
    old_sent=sent;
    if(rx >= 0 && wx >= 0){
        '"$printf_command"';
        fflush(stdout);
    }
}
'
#+end_src

*** ipstack-vpn
| Category        | Guix dependency | Description             |
|-----------------+-----------------+-------------------------|
| desktop-polybar | bind:utils      | Provides dig            |
| desktop-polybar | curl            |                         |
| desktop-polybar | jq              | util to work with JSONs |

A module to get a country of the current IP and openvpn status. Uses [[https://ipstack.com/][ipstack]] API.

#+begin_src bash :tangle ./bin/polybar/ipstack-vpn.sh :noweb yes
ip=$(dig +short +timeout=1 myip.opendns.com @resolver1.opendns.com 2> /dev/null)
# API_KEY="$(pass show My_Online/APIs/ipstack | head -n 1)"
API_KEY=$IPSTACK_API_KEY
if [[ -z $ip || $ip == *"timed out"* ]]; then
    echo "%{u<<get-color(name="red")>>}%{+u} ?? %{u-}"
    exit
fi
ip_info=$(curl -s http://api.ipstack.com/${ip}?access_key=${API_KEY})
# emoji=$(echo $ip_info | jq -r '.location.country_flag_emoji')
code=$(echo $ip_info | jq -r '.country_code' 2> /dev/null)
vpn=$(pgrep -a openvpn$ | head -n 1 | awk '{print $NF }' | cut -d '.' -f 1)

if [[ -z $code ]]; then
    code="??"
fi

if [ -n "$vpn" ]; then
    echo "%{u<<get-color(name="blue")>>}%{+u}  $code %{u-}"
else
    echo "%{u<<get-color(name="red")>>}%{+u}  $code %{u-}"
fi
#+end_src

#+begin_src conf-windows
[module/ipstack-vpn]
type = custom/script
exec = /home/pavel/bin/polybar/ipstack-vpn.sh
interval = 1200
#+end_src
*** openvpn
A module to check if openvpn is running.

#+begin_src bash :tangle ./bin/polybar/openvpn.sh :noweb yes
vpn=$(pgrep -a openvpn$ | head -n 1 | awk '{print $NF }' | cut -d '.' -f 1)
if [ -n "$vpn" ]; then
    echo "  "
else
    echo "  "
fi
#+end_src

#+begin_src conf-windows :noweb yes
[module/openvpn]
type = custom/script
exec = /home/pavel/bin/polybar/openvpn.sh
format-background = <<get-polybar-bg(module="openvpn")>>
format-foreground = ${colors.foreground}
interval = 1200
#+end_src
*** xkeyboard
Current keyboard layout
#+begin_src conf-windows :noweb yes
[module/xkeyboard]
type = internal/xkeyboard
format = <label-layout>

; format-underline = ${colors.magenta}
format-background = <<get-polybar-bg(module="xkeyboard")>>
format-foreground = ${colors.foreground}
label-layout = %icon%
layout-icon-0 = ru;RU
layout-icon-1 = us;US
#+end_src

*** battery
#+begin_src conf-windows :noweb yes
[module/battery]
type = internal/battery
battery = BAT0
adapter = ADP0

time-format = %H:%M
format-discharging = <ramp-capacity> <label-discharging>
format-discharging-background = <<get-polybar-bg(module="battery")>>
format-charging-background = <<get-polybar-bg(module="battery")>>
format-full-background = <<get-polybar-bg(module="battery")>>
format-foreground = ${colors.foreground}
label-discharging = %percentage%% %time%
label-charging =  %percentage%% %time%

ramp-capacity-0 = 
ramp-capacity-1 = 
ramp-capacity-2 = 
ramp-capacity-3 = 
ramp-capacity-4 = 
#+end_src

*** weather
Gets current weather from [[http://wttr.in/][wttr.in]]
#+begin_src bash :tangle ./bin/polybar/weather.sh
bar_format="${BAR_FORMAT:-"%t"}"
location="${LOCATION:-"Saint-Petersburg"}"
format_1=${FORMAT_1:-"qF"}
format_2=${FORMAT_1:-"format=v2n"}

bar_weather=$(curl -s wttr.in/${location}?format=${bar_format} || echo "??")
if [ -z "$bar_weather" ]; then
    exit 1
elif [[ "$bar_weather" == *"Unknown"* || "$bar_weather" == *"Sorry"* || "$bar_weather" == *"Bad Gateway"* ]]; then
    echo "??"
    exit 1
else
    echo ${bar_weather}
fi
#+end_src

#+begin_src conf-windows :noweb yes
[module/weather]
type = custom/script
exec = /home/pavel/bin/polybar/weather.sh
; format-underline = ${colors.red}
format-background = <<get-polybar-bg(module="weather")>>
format-foreground = ${colors.foreground}
interval = 1200
#+end_src
*** sun
| Category        | Guix dependency |
|-----------------+-----------------|
| desktop-polybar | sunwait         |

Prints out the time of sunrise/sunset. Uses [[https://github.com/risacher/sunwait][sunwait]]

#+begin_src bash :tangle ./bin/polybar/sun.sh :noweb yes
declare -A LAT_DATA=(
    ["TMN"]="57.15N"
    ["SPB"]="59.9375N"
)
declare -A LON_DATA=(
    ["TMN"]="65.533333E"
    ["SPB"]="30.308611E"
)
if [ -z "$LOC" ]; then
    echo "LOC?"
    exit -1
fi
LAT=${LAT_DATA[$LOC]}
LON=${LON_DATA[$LOC]}

time=$(sunwait poll daylight rise ${LAT} $LON)

if [[ ${time} == 'DAY' ]]; then
    sunset=$(sunwait list daylight set ${LAT} ${LON})
    # echo "%{u<<get-color(name="yellow")>>}%{+u} $sunset %{u-}"
    echo $sunset
else
    sunrise=$(sunwait list daylight rise ${LAT} ${LON})
    # echo "%{u<<get-color(name="red")>>}%{+u} $sunrise %{u-}"
    echo $sunrise
fi
#+end_src

#+begin_src conf-windows :noweb yes
[module/sun]
type = custom/script
exec = /home/pavel/bin/polybar/sun.sh
format-background = <<get-polybar-bg(module="sun")>>
format-foreground = ${colors.foreground}
interval = 60
#+end_src
*** aw-afk
Prints out a current uptime and non-AFK time from [[https://github.com/ActivityWatch][ActivityWatch]] server

| Category        | Guix dependency |
|-----------------+-----------------|
| desktop-polybar | dateutils       |

#+begin_src bash :tangle ./bin/polybar/aw_afk.sh :noweb yes
afk_event=$(curl -s -X GET "http://localhost:5600/api/0/buckets/aw-watcher-afk_$(hostname)/events?limit=1" -H "accept: application/json")
status=$(echo ${afk_event} | jq -r '.[0].data.status')
afk_time=$(echo "${afk_event}" | jq -r '.[0].duration' | xargs -I !  date -u -d @! +"%H:%M")

uptime=$(uptime | awk '{ print substr($3, 0, length($3) - 1) }' | xargs -I ! date -d ! +"%H:%M")
res="${afk_time} / ${uptime}"
if [[ $status == 'afk' ]]; then
    # echo "%{u<<get-color(name="red")>>}%{+u} [AFK] $res %{u-}"
    echo "[AFK] $res"
else
    # echo "%{u<<get-color(name="blue")>>}%{+u} $res %{u-}"
    echo "$res"
fi
#+end_src

#+begin_src conf-windows :noweb yes
[module/aw-afk]
type = custom/script
exec = /home/pavel/bin/polybar/aw_afk.sh
interval = 60
format-background = <<get-polybar-bg(module="aw-afk")>>
format-foreground = ${colors.foreground}
#+end_src
*** date
Current date
#+begin_src conf-windows :noweb yes
[module/date]
type = internal/date
interval = 5

date =
date-alt = "%Y-%m-%d"

time = %H:%M
time-alt = %H:%M:%S

format-background = <<get-polybar-bg(module="date")>>
format-foreground = ${colors.foreground}
label = "%date% %time%"
#+end_src

*** pomm
Pomodoro module.
#+begin_src bash :tangle ./bin/polybar/pomm.sh
if ps -e | grep emacs >> /dev/null; then
    emacsclient --eval "(if (boundp 'pomm-current-mode-line-string) pomm-current-mode-line-string \"\") " | xargs echo -e
fi
#+end_src

#+begin_src conf-windows
[module/pomm]
type = custom/script
exec = /home/pavel/bin/polybar/pomm.sh
interval = 1
format-underline = ${colors.light-green}
format-foreground = ${colors.foreground}
#+end_src
*** SEP
A simple separator
#+begin_src conf-windows
[module/SEP]
type = custom/text
content = "|"
content-foreground = ${colors.magenta}
content-padding = 0
content-margin = 0
interval = 100000
#+end_src
*** TSEP
A separator, which appears only if monitor is set to have a tray in the launch script
#+begin_src bash :tangle ./bin/polybar/tray-sep.sh
if [ ! -z "$TRAY" ] && [ "$TRAY" != "none" ]; then
    echo "| "
fi
#+end_src

#+begin_src conf-windows
[module/TSEP]
type = custom/script
exec = /home/pavel/bin/polybar/tray-sep.sh
format-foreground = ${colors.magenta}
interval = 100000
#+end_src

*** i3
Show i3wm workspaces

#+begin_src conf-windows
[module/i3]
type = internal/i3
format = <label-state> <label-mode>
index-sort = true
wrapping-scroll = false

; Only show workspaces on the same output as the bar
pin-workspaces = true

label-mode-padding = 1
label-mode-foreground = ${colors.white}
label-mode-background = ${colors.blue}

; focused = Active workspace on focused monitor
label-focused = %name%
label-focused-background = ${colors.blue}
label-focused-underline= ${colors.blue}
label-focused-padding = 1

; unfocused = Inactive workspace on any monitor
label-unfocused = %name%
label-unfocused-padding = 1
label-unfocused-foreground = ${colors.white}

; visible = Active workspace on unfocused monitor
label-visible = %name%
; label-visible-background = ${self.label-focused-background}
label-visible-underline = ${self.label-focused-underline}
label-visible-padding = ${self.label-focused-padding}

; urgent = Workspace with urgency hint set
label-urgent = %name%
label-urgent-background = ${colors.red}
label-urgent-foreground = ${colors.black}
label-urgent-padding = 1
#+end_src

* Rofi
| Category     | Guix dependency |
|--------------+-----------------|
| desktop-rofi | rofi            |

[[https://github.com/davatorium/rofi][rofi]] is another dynamic menu generator. It can act as dmenu replacement but offers a superset of dmenu's features.

** Theme
A theme based on the current Emacs theme. Inspired by [[https://github.com/dracula/rofi][dracula theme]].

#+name: get-rofi-colors
#+begin_src emacs-lisp :var table=colors
(apply
 #'concat
 (mapcar
  (lambda (elem)
    (concat (nth 0 elem) ": " (my/color-value (nth 0 elem)) ";\n"))
  table))
#+end_src

#+begin_src css :tangle ./.config/rofi/config.rasi :noweb yes
/* Generated from [[file:../../Desktop.org::*Theme][Theme:1]] */
 ,* {
    <<get-rofi-colors()>>

    foreground:                  <<get-color(name="fg")>>;
    background:                  <<get-color(name="bg")>>;
    background-color:            <<get-color(name="bg")>>;
    separatorcolor:              @blue;
    border-color:                <<get-color(name="border")>>;
    selected-normal-background:  <<get-color(name="blue")>>;
    selected-normal-foreground:  <<get-fg-for-color(name="blue")>>;
    selected-active-background:  <<get-color(name="light-blue")>>;
    selected-active-foreground:  <<get-fg-for-color(name="light-blue")>>;
    selected-urgent-background:  <<get-color(name="red")>>;
    selected-urgent-foreground:  <<get-fg-for-color(name="red")>>;
    normal-foreground:           @foreground;
    normal-background:           @background;
    active-foreground:           @blue;
    active-background:           @background;
    urgent-foreground:           @red;
    urgent-background:           @background;
    alternate-normal-background: <<get-color(name="bg-alt")>>;
    alternate-normal-foreground: @foreground;
    alternate-active-background: <<get-fg-for-color(name="light-blue")>>;
    alternate-active-foreground: <<get-color(name="light-blue")>>;
    alternate-urgent-background: <<get-fg-for-color(name="red")>>;
    alternate-urgent-foreground: <<get-color(name="red")>>;
    spacing:                     2;
}
window {
    background-color: @background;
    border:           1;
    padding:          5;
}
mainbox {
    border:           0;
    padding:          0;
}
message {
    border:           1px dash 0px 0px ;
    border-color:     @separatorcolor;
    padding:          1px ;
}
textbox {
    text-color:       @foreground;
}
listview {
    fixed-height:     0;
    border:           2px dash 0px 0px ;
    border-color:     @separatorcolor;
    spacing:          2px ;
    scrollbar:        true;
    padding:          2px 0px 0px ;
}
element {
    border:           0;
    padding:          1px ;
}
element normal.normal {
    background-color: @normal-background;
    text-color:       @normal-foreground;
}
element normal.urgent {
    background-color: @urgent-background;
    text-color:       @urgent-foreground;
}
element normal.active {
    background-color: @active-background;
    text-color:       @active-foreground;
}
element selected.normal {
    background-color: @selected-normal-background;
    text-color:       @selected-normal-foreground;
}
element selected.urgent {
    background-color: @selected-urgent-background;
    text-color:       @selected-urgent-foreground;
}
element selected.active {
    background-color: @selected-active-background;
    text-color:       @selected-active-foreground;
}
element alternate.normal {
    background-color: @alternate-normal-background;
    text-color:       @alternate-normal-foreground;
}
element alternate.urgent {
    background-color: @alternate-urgent-background;
    text-color:       @alternate-urgent-foreground;
}
element alternate.active {
    background-color: @alternate-active-background;
    text-color:       @alternate-active-foreground;
}
scrollbar {
    width:            4px ;
    border:           0;
    handle-color:     @normal-foreground;
    handle-width:     8px ;
    padding:          0;
}
sidebar {
    border:           2px dash 0px 0px ;
    border-color:     @separatorcolor;
}
button {
    spacing:          0;
    text-color:       @normal-foreground;
}
button selected {
    background-color: @selected-normal-background;
    text-color:       @selected-normal-foreground;
}
inputbar {
    spacing:          0px;
    text-color:       @normal-foreground;
    padding:          1px ;
    children:         [ prompt,textbox-prompt-colon,entry,case-indicator ];
}
case-indicator {
    spacing:          0;
    text-color:       @normal-foreground;
}
entry {
    spacing:          0;
    text-color:       @normal-foreground;
}
prompt {
    spacing:          0;
    text-color:       @normal-foreground;
}
textbox-prompt-colon {
    expand:           false;
    str:              ":";
    margin:           0px 0.3000em 0.0000em 0.0000em ;
    text-color:       inherit;
}
#+end_src

** Scripts
*** Man pages
Inspired by [[https://www.youtube.com/watch?v=8E8sUNHdzG8][this Luke Smith's video]].

A script to open a man page with zathura. There is no particular reason why one should look through man pages in pdf viewer rather than in console, but why not.
#+begin_src bash :tangle ./bin/scripts/rofi-man
SELECTED=$(man -k . | rofi -dmenu -l 20 | awk '{print $1}')
if [[ ! -z $SELECTED ]]; then
    man -Tpdf $SELECTED | zathura -
fi
#+end_src
*** Emojis
| Category     | Guix dependency |
|--------------+-----------------|
| desktop-rofi | python-rofimoji |
*** pass
| Category     | Guix dependency |
|--------------+-----------------|
| desktop-rofi | rofi-pass       |
| desktop-rofi | xset            |

A nice [[https://github.com/carnager/rofi-pass][pass frontend for Rofi]], which is even packaged for Guix.

#+begin_src bash :tangle ~/.config/rofi-pass/config
USERNAME_field='username'
EDITOR=vim
default_autotype='username :tab pass'
clip=both
#+end_src
* Flameshot
| Guix dependency |
|-----------------|
| flameshot       |

[[https://github.com/flameshot-org/flameshot][flameshot]] is my program of choice to make screenshots.

As it overwrites its own config all the time, I do not keep the file in VC.

#+begin_src conf-unix :tangle ./.config/flameshot/flameshot.ini :comments no :noweb yes
[General]
disabledTrayIcon=false
drawColor=#ff0000
drawThickness=3
savePath=/home/pavel/Pictures
savePathFixed=false
showStartupLaunchMessage=false
uiColor=<<get-color(name="blue")>>

[Shortcuts]
TYPE_ARROW=A
TYPE_CIRCLE=C
TYPE_CIRCLECOUNT=
TYPE_COMMIT_CURRENT_TOOL=Ctrl+Return
TYPE_COPY=Ctrl+C
TYPE_DRAWER=D
TYPE_EXIT=Ctrl+Q
TYPE_IMAGEUPLOADER=Return
TYPE_MARKER=M
TYPE_MOVESELECTION=Ctrl+M
TYPE_MOVE_DOWN=Down
TYPE_MOVE_LEFT=Left
TYPE_MOVE_RIGHT=Right
TYPE_MOVE_UP=Up
TYPE_OPEN_APP=Ctrl+O
TYPE_PENCIL=P
TYPE_PIN=
TYPE_PIXELATE=B
TYPE_RECTANGLE=R
TYPE_REDO=Ctrl+Shift+Z
TYPE_RESIZE_DOWN=Shift+Down
TYPE_RESIZE_LEFT=Shift+Left
TYPE_RESIZE_RIGHT=Shift+Right
TYPE_RESIZE_UP=Shift+Up
TYPE_SAVE=Ctrl+S
TYPE_SELECTION=S
TYPE_SELECTIONINDICATOR=
TYPE_SELECT_ALL=Ctrl+A
TYPE_TEXT=T
TYPE_TOGGLE_PANEL=Space
TYPE_UNDO=Ctrl+Z
#+end_src
* dunst
| Guix dependency |
|-----------------|
| dunst           |
| libnotify       |

[[https://github.com/dunst-project/dunst][dunst]] is a lightweight notification daemon.

My customizations of the original config consist mostly of changing colors. Check out the default config or =man dunst= for the description of settings.

References:
- [[https://dunst-project.org/documentation/][dunst documentation]]

#+begin_src conf-space :tangle ./.config/dunst/dunstrc :noweb yes
[global]
    monitor = 0
    follow = mouse
    geometry = "300x5-30+20"
    indicate_hidden = yes
    shrink = no
    transparency = 15
    notification_height = 0
    separator_height = 2
    padding = 8
    horizontal_padding = 8
    frame_width = 1
    frame_color = <<get-color(name="border", quote=1)>>
    separator_color = frame
    sort = yes
    idle_threshold = 120

    ### Text ###
    font = DejaVu Sans 9

    line_height = 0
    markup = full

    # The format of the message.  Possible variables are:
    #   %a  appname
    #   %s  summary
    #   %b  body
    #   %i  iconname (including its path)
    #   %I  iconname (without its path)
    #   %p  progress value if set ([  0%] to [100%]) or nothing
    #   %n  progress value if set without any extra characters
    #   %%  Literal %
    # Markup is allowed
    format = "<b>%s</b>\n%b"
    alignment = left
    show_age_threshold = 60
    word_wrap = yes
    ellipsize = middle
    ignore_newline = no
    stack_duplicates = true
    hide_duplicate_count = false
    show_indicators = yes

    ### Icons ###
    icon_position = left
    max_icon_size = 32
    icon_path = /usr/share/icons/Mint-Y/status/32/;/usr/share/icons/Mint-Y/devices/32

    ### History ###
    sticky_history = yes
    history_length = 20

    ### Misc/Advanced ###
    dmenu = /usr/bin/dmenu -p dunst:
    browser = /home/pavel/.guix-extra-profiles/browsers/browsers/bin/firefox
    always_run_script = true
    title = Dunst
    class = Dunst
    startup_notification = false
    verbosity = mesg
    corner_radius = 0

    ### Legacy
    force_xinerama = false

    ### mouse
    mouse_left_click = close_current
    mouse_middle_click = do_action
    mouse_right_click = close_all

[experimental]
    per_monitor_dpi = false

[shortcuts]
    close = ctrl+space
    close_all = ctrl+shift+space
    history = ctrl+grave
    context = ctrl+shift+period

[urgency_low]
    background = <<get-color(name="bg-other", quote=1)>>
    frame_color = <<get-color(name="border", quote=1)>>
    foreground = <<get-color(name="fg", quote=1)>>
    timeout = 10

[urgency_normal]
    background = <<get-color(name="bg", quote=1)>>
    frame_color = <<get-color(name="border", quote=1)>>
    foreground = <<get-color(name="fg", quote=1)>>
    timeout = 10

[urgency_critical]
    background = <<get-color(name="red", quote=1)>>
    foreground = <<get-fg-for-color(name="red", quote=1)>>
    frame_color = <<get-color(name="red", quote=1)>>
    timeout = 0
#+end_src
* Firefox
[[https://www.mozilla.org/en-US/firefox/new/][Firefox]] is my web browser of choice.

** Tridactyl
[[https://github.com/tridactyl/tridactyl][Tridactyl]] is a Firefox add-on that provides vim-like interface.

Run =:nativeinstall= at the first start.

*** Config
The native messenger allows to configure the addon with a config file.

#+begin_src conf :tangle ~/.tridactylrc
sanitize tridactyllocal tridactylsync

bind gn tabnew
bind gN tabclose

bind O fillcmdline tabopen

bind n findnext 1
bind N findnext -1
bind F hint -t

unbind <C-f>

set smoothscroll false
set findcase sensitive
colorscheme emacs

bind j scrollline 3
bind k scrollline -3
bind --mode=normal <C-i> mode ignore
bind --mode=ignore <C-i> mode normal

guiset_quiet gui full
guiset_quiet statuspanel left
guiset_quiet navbar none
guiset_quiet tabs always

set searchurls.g https://google.com/search?q=

set newtab about:blank

command fixamo_quiet jsb tri.excmds.setpref("privacy.resistFingerprinting.block_mozAddonManager", "true").then(tri.excmds.setpref("extensions.webextensions.restrictedDomains", '""'))
command fixamo js tri.excmds.setpref("privacy.resistFingerprinting.block_mozAddonManager", "true").then(tri.excmds.setpref("extensions.webextensions.restrictedDomains", '""').then(tri.excmds.fillcmdline_tmp(3000, "Permissions added to user.js. Please restart Firefox to make them take affect.")))
fixamo_quiet
#+end_src

*** Theme
Then, the package has its separate theme.

I based it on =base16-dracula= by [[http://chriskempson.com][Chris Kempson]], but replaced the colors with my Emacs theme.

#+begin_src css :tangle ~/themes/emacs.css :noweb yes
:root {
  --tridactyl-fg: <<get-color(name="fg")>>;
  --tridactyl-bg: <<get-color(name="bg")>>;
  --tridactyl-url-fg: <<get-color(name="red")>>;
  --tridactyl-url-bg: <<get-color(name="bg")>>;
  --tridactyl-highlight-box-bg: <<get-color(name="blue")>>;
  --tridactyl-highlight-box-fg: <<get-fg-for-color(name="blue")>>;

  /* Command line */
  --tridactyl-cmdl-bg: <<get-color(name="bg-alt")>>
  --tridactyl-cmdl-fg: <<get-color(name="fg")>>

  /* Hint character tags */
  --tridactyl-hintspan-fg: <<get-fg-for-color(name="blue")>> !important;
  --tridactyl-hintspan-bg: <<get-color(name="blue")>> !important;

  /* Element Highlights */
  --tridactyl-hint-active-fg: none;
  --tridactyl-hint-active-bg: none;
  --tridactyl-hint-active-outline: none;
  /* --tridactyl-hint-activy-outline: var(--base08); */
  --tridactyl-hint-bg: none;
  --tridactyl-hint-outline: none;
  /* --tridactyl-hint-outline: var(--base08); */
}

/* a { */
/*   color: var(--base04); */
/* } */

#command-line-holder {
  order: 1;
  border: 2px solid <<get-color(name="blue")>>;
  background: <<get-color(name="bg")>>;
}

#tridactyl-input {
  padding: 1rem;
  color: var(--tridactyl-fg);
  width: 90%;
  font-size: 1.2rem;
  line-height: 1.5;
  background: var(--tridactyl-bg);
  padding-left: unset;
  padding: 1rem;
}

#completions table {
  font-size: 0.8rem;
  font-weight: 200;
  border-spacing: 0;
  table-layout: fixed;
  padding: 1rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

#completions > div {
  max-height: calc(20 * var(--option-height));
  min-height: calc(10 * var(--option-height));
}

/* COMPLETIONS */

#completions {
  --option-height: 1.4em;
  color: var(--tridactyl-fg);
  background: var(--tridactyl-bg);
  display: inline-block;
  font-size: unset;
  font-weight: 200;
  overflow: hidden;
  width: 100%;
  border-top: unset;
  order: 2;
}

/* Olie doesn't know how CSS inheritance works */
#completions .HistoryCompletionSource {
  max-height: unset;
  min-height: unset;
}

#completions .HistoryCompletionSource table {
  width: 100%;
  font-size: 11pt;
  border-spacing: 0;
  table-layout: fixed;
}

/* redundancy 2: redundancy 2: more redundancy */
#completions .BmarkCompletionSource {
  max-height: unset;
  min-height: unset;
}

#completions table tr td.prefix,#completions table tr td.privatewindow,#completions table tr td.container,#completions table tr td.icon {
  display: none;
}

#completions .BufferCompletionSource table {
  width: unset;
  font-size: unset;
  border-spacing: unset;
  table-layout: unset;
}

#completions table tr .title {
  width: 50%;
}

#completions table tr {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#completions .sectionHeader {
  background: unset;
  font-weight: 200;
  border-bottom: unset;
  padding: 1rem !important;
  padding-left: unset;
  padding-bottom: 0.2rem;
}

#cmdline_iframe {
  position: fixed !important;
  bottom: unset;
  top: 25% !important;
  left: 10% !important;
  z-index: 2147483647 !important;
  width: 80% !important;
  box-shadow: rgba(0, 0, 0, 0.5) 0px 0px 20px !important;
}

.TridactylStatusIndicator {
  position: fixed !important;
  bottom: 0 !important;
  background: var(--tridactyl-bg) !important;
  border: unset !important;
  border: 1px <<get-color(name="blue")>> solid !important;
  font-size: 12pt !important;
  /*font-weight: 200 !important;*/
  padding: 0.8ex !important;
}

#completions .focused {
  background: <<get-color(name="blue")>>;
  color: <<get-fg-for-color(name="blue")>>;
}

#completions .focused .url {
  background: <<get-color(name="blue")>>;
  color: <<get-fg-for-color(name="blue")>>;
}
/* #Ocean-normal { */
/*  border-color: green !important; */
/* } */

/* #Ocean-insert { */
/*  border-color: yellow !important; */
/* } */
#+end_src
** Firefox Color
[[https://color.firefox.com/][Firefox Color]] is a system that allows for easy experimentation with Firefox themes.

It can serialize themes into URLs like =https://color.firefox.com/?theme=<theme>=, so I thought it would be a piece of cake to generate one from my Emacs theme, right? Well...

As it turns out, Firefox uses npm package called [[https://github.com/masotime/json-url][json-url]] to create =<theme>=, which this package does by the following sequence:
- msgpack v5
- lzma
- url-safe base64
I tried to reproduce the above in Emacs, but in the end gave up and used the package in a simple node script:

#+begin_src js :tangle ~/bin/firefox-theme/main.js
const JsonUrl = require('json-url');
const jsonCodec = JsonUrl('lzma');

const json = JSON.parse(process.argv[2]);
jsonCodec.compress(json).then((r) => process.stdout.write(r));
#+end_src

Which I then can use to create the URL.

#+begin_src emacs-lisp
(defun my/firefox-encode-json (string)
  (with-output-to-string
    (with-current-buffer standard-output
      (call-process "node" nil t nil
                    (expand-file-name "~/bin/firefox-theme/main.js")
                    string))))

(defun my/color-value-rgb (color)
  (let ((color (if (stringp color)
                   color
                 (my/color-value color))))
    `((r . ,(* 2.55 (ct-get-rgb-r color)))
      (g . ,(* 2.55 (ct-get-rgb-g color)))
      (b . ,(* 2.55 (ct-get-rgb-b color))))))

(defun my/firefox-get-json ()
  (let ((toolbar-color
         (my/color-value-rgb
          (or
           (my/color-value 'bg-mode-line-active)
           (my/color-value 'bg-mode-line)
           (if (my/light-p)
               (ct-edit-hsl-l-dec (my/color-value 'bg-alt) 10)
             (ct-edit-hsl-l-inc (my/color-value 'bg-alt) 15)))))
        (text-color
         (my/color-value-rgb
          (if (my/light-p) 'fg 'yellow))))
    `((colors . ((toolbar . ,toolbar-color)
                 (toolbar_text . ,text-color)
                 (frame . ,(my/color-value-rgb 'bg))
                 (tab_background_text . ,(my/color-value-rgb 'fg))
                 (toolbar_field . ,(my/color-value-rgb 'bg))
                 (toolbar_field_text . ,(my/color-value-rgb 'blue))
                 (tab_line . ,text-color)
                 (popup . ,(my/color-value-rgb 'bg-alt))
                 (popup_text . ,(my/color-value-rgb 'fg))
                 (tab_loading . ,text-color))))))

(defun my/firefox-get-color-url ()
  (concat
   "https://color.firefox.com/?theme="
   (my/firefox-encode-json
    (json-encode
     (my/firefox-get-json)))))

(defun my/firefox-kill-color-url ()
  (interactive)
  (kill-new (my/firefox-get-color-url)))

(my/firefox-get-color-url)
#+end_src

#+RESULTS:
: https://color.firefox.com/?theme=XQAAAAJFAQAAAAAAAABAqYhm849SCia3ftKEGccwS-xMDPsquqWmWrYLGyvA453nlgdoRTTSje3LA7vfcBuCeiFpttFMurVWViuvuhtBMugWmSsvzgyPVKtRGycIN1zWryrJ9mbJv5mYo-xR8V8hbMdvgfLyrp7SHnedMUPeouponHkloIv8tsVzxCwih5WlhbK_FebmNVUdxiV3yclhLVDXmZtn06QuboIcvf_BITkA

* keynav
| Guix dependency |
|-----------------|
| keynav          |

| Type    | Note                           |
|---------+--------------------------------|
| SYMLINK | ./config/keynavrc -> .keynavrc |

[[https://github.com/jordansissel/keynav][keynav]] is a program for controlling mouse with keyboard, mostly by screen bisection. This is a poor replacement for a proper keyboard-drived sofware, but...

References:
- [[https://github.com/jordansissel/keynav/blob/master/keynav.pod][keynav documentation]]
** Config
#+begin_src conf-space :tangle ./.config/keynav/keynavrc
# clear all previous keybindings
clear

# Start & stop
ctrl+semicolon start
Super_L+bracketright start
Super_R+bracketright start
Escape end
ctrl+bracketleft end

# Macros
q record ~/.keynav_macros
shift+at playback

# Bisecting
a history-back
Left cut-left
Right cut-right
Down cut-down
Up cut-up
h cut-left
j cut-down
k cut-up
l cut-right
t windowzoom                          # Zoom to the current window
c cursorzoom 300 300                  # Limit the bisection area by 300x300

# Move the bisecting area
shift+h move-left
shift+j move-down
shift+k move-up
shift+l move-right
shift+Left move-left
shift+Right move-right
shift+Up move-up
shift+Down move-down

# Actions
space warp,click 3,end                # Right click
Return warp,click 1,end               # Left click
Shift+Return warp,doubleclick 1,end   # Double left click
semicolon warp,end                    # Move the cursor and exit
w warp                                # Just move the cursor
e end                                 # exit
u warp,click 4                        # scroll up
d warp,click 5                        # scroll down
1 click 1
2 click 2
3 click 3
4 click 4
5 click 5
#+end_src
** Using with picom
I've noticed that the program does not play nice with picom's fade effect. To fix that, add the following to you config:
#+begin_src conf-unix :tangle no
fade-exclude = [
  "class_i = 'keynav'",
  "class_g = 'keynav'",
]
#+end_src
* Picom
:PROPERTIES:
:header-args+: :tangle ./.config/picom.conf
:END:

| Guix dependency |
|-----------------|
| picom           |

[[https://github.com/yshui/picom][picom]] is a compositor for X11. It allows effects such as transparency, blurring, etc.

Check out the sample configuration to get an idea on what's possible. I only have some basic settings in mine.

Also, there are some fancy forks of picom (e.g. [[https://github.com/ibhagwan/picom][ibhagwan/picom]] adds rounded corners).

References:
- [[https://github.com/yshui/picom/wiki][picom wiki]]
- [[https://wiki.archlinux.org/index.php/Picom][Picom on ArchWiki]]
- [[https://github.com/yshui/picom/blob/next/picom.sample.conf][Sample configuration]]

** Shadows
#+begin_src conf-unix
shadow = true;
shadow-radius = 2;
shadow-offset-x = -2;
shadow-offset-y = -2;

shadow-exclude = [
  "name = 'Notification'",
  "class_g = 'Conky'",
  "name ?= 'cpt_frame_window'",
  "class_g ?= 'Notify-osd'",
  "class_g = 'Cairo-clock'",
  "_GTK_FRAME_EXTENTS@:c"
];
#+end_src
** Fading
#+begin_src conf-unix
fading = true

fade-in-step = 0.03;
fade-out-step = 0.03;
fade-delta = 10

fade-exclude = [
  "class_i = 'keynav'",
  "class_g = 'keynav'",
  "class_i = 'emacs'",
  "class_g = 'emacs'",
]
#+end_src
** Opacity
I don't use stuff like transparency for inactive windows.

The first 5 lines of =opacity-rule= make i3wm's hidden windows 100% transparent, so I see the background behind the semi-transparent windows in i3wm's stacked and tabbed layout. Here is [[https://unix.stackexchange.com/questions/281131/compton-i3-tabbed-stacked-transparency-background-image][StackExchange question]] about that.

I also noticed that for some reason it doesn't play well with Emacs's built-in transparency, so the last line sets up Emacs transparency at 90%.

#+begin_src conf-unix
inactive-opacity = 1;

frame-opacity = 1.0;
inactive-opacity-override = false;
focus-exclude = [ "class_g = 'Cairo-clock'" ];

opacity-rule = [
  "0:_NET_WM_STATE@[0]:32a = '_NET_WM_STATE_HIDDEN'",
  "0:_NET_WM_STATE@[1]:32a = '_NET_WM_STATE_HIDDEN'",
  "0:_NET_WM_STATE@[2]:32a = '_NET_WM_STATE_HIDDEN'",
  "0:_NET_WM_STATE@[3]:32a = '_NET_WM_STATE_HIDDEN'",
  "0:_NET_WM_STATE@[4]:32a = '_NET_WM_STATE_HIDDEN'",
  "90:class_g = 'Emacs'"
];
#+end_src
** General settings
Default general settings. Editing some of these may be neeeded in case of performance issues.

#+begin_src conf-unix
backend = "xrender";
vsync = true
mark-wmwin-focused = true;
mark-ovredir-focused = true;
detect-rounded-corners = true;
detect-client-opacity = true;
refresh-rate = 0
detect-transient = true
detect-client-leader = true
use-damage = true
log-level = "warn";

wintypes:
{
  tooltip = { fade = true; shadow = true; opacity = 0.75; focus = true; full-shadow = false; };
  dock = { shadow = false; }
  dnd = { shadow = false; }
  popup_menu = { opacity = 1; }
  dropdown_menu = { opacity = 1; }
};
#+end_src
* Zathura
| Category | Guix dependency   |
|----------+-------------------|
| office   | zathura           |
| office   | zathura-ps        |
| office   | zathura-pdf-mupdf |
| office   | zathura-djvu      |

[[https://pwmt.org/projects/zathura/][Zathura]] is a pdf viewer with vim-like keybindings.

#+NAME: zathura-recolor
#+begin_src emacs-lisp
(if (my/light-p) "false" "true")
#+end_src

#+begin_src conf-space :noweb yes :tangle .config/zathura/zathurarc
set abort-clear-search false
set guioptions cs
set selection-clipboard clipboard
set recolor <<zathura-recolor()>>
map <C-r> set recolor false
map <C-R> set recolor true

set recolor-lightcolor <<get-color(name="black", quote=1)>>

set completion-bg <<get-color(name="bg", quote=1)>>
set completion-fg <<get-color(name="fg", quote=1)>>
set completion-group-bg <<get-color(name="bg", quote=1)>>
set completion-group-fg <<get-color(name="fg", quote=1)>>
set completion-highlight-bg <<get-color(name="magenta", quote=1)>>
set completion-highlight-fg <<get-fg-for-color(name="magenta", quote=1)>>

set inputbar-bg <<get-color(name="light-black", quote=1)>>
set inputbar-fg <<get-color(name="white", quote=1)>>
set statusbar-bg <<get-color(name="light-black", quote=1)>>
set statusbar-fg <<get-color(name="white", quote=1)>>

set notification-error-bg <<get-color(name="red", quote=1)>>
set notification-error-fg <<get-fg-for-color(name="red", quote=1)>>
set notification-warning-bg <<get-color(name="yellow", quote=1)>>
set notification-warning-fg <<get-fg-for-color(name="yellow", quote=1)>>
#+end_src
* Various software
This section generates manifests for various desktop software that I'm using.

** Browsers
| Category | Guix dependency    |
|----------+--------------------|
| browsers | ungoogled-chromium |
| browsers | firefox            |
** Office & Multimedia
| Category | Guix dependency |
|----------+-----------------|
| office   | libreoffice     |
| office   | gimp            |
| office   | krita           |
| office   | ffmpeg          |
| office   | kdenlive        |
| office   | inkscape        |
| office   | okular          |
| office   | obs             |
** LaTeX
| Category | Guix dependency               |
|----------+-------------------------------|
| latex    | texlive                       |
| latex    | texlab-bin                    |
| latex    | biber                         |
| latex    | python-pygments               |
| latex    | font-microsoft-web-core-fonts |
** Dev
| Category | Guix dependency   | Disabled |
|----------+-------------------+----------|
| dev      | micromamba-bin    |          |
| dev      | pandoc            |          |
| dev      | docker-compose    |          |
| dev      | postgresql        |          |
| dev      | virt-manager      |          |
| dev      | git-filter-repo   |          |
| dev      | node              |          |
| dev      | openjdk:jdk       |          |
| dev      | go                |          |
| dev      | pkg-config        |          |
| dev      | gcc-toolchain     |          |
| dev      | lua               |          |
| dev      | libfaketime       |          |
| dev      | hugo-extended     |          |
| dev      | make              |          |
| dev      | sbcl              | t        |
| dev      | git-lfs           |          |
| dev      | mysql             | t        |
| dev      | gource            |          |
| dev      | php               |          |
| dev      | python            |          |
| dev      | python-virtualenv |          |
| dev      | leiningen         |          |
| dev      | socat             |          |
** Manifests
#+NAME: packages
#+begin_src emacs-lisp :tangle no :var category=""
(my/format-guix-dependencies category)
#+end_src

Dev
#+begin_src scheme :tangle .config/guix/manifests/dev.scm :noweb yes
(specifications->manifest
 '(
   <<packages("dev")>>))
#+end_src

Browsers
#+begin_src scheme :tangle .config/guix/manifests/browsers.scm :noweb yes
(specifications->manifest
 '(
   <<packages("browsers")>>))
#+end_src

Music
#+begin_src scheme :tangle .config/guix/manifests/music.scm :noweb yes
(specifications->manifest
 '(
   <<packages("music")>>))
#+end_src

Office
#+begin_src scheme :tangle .config/guix/manifests/office.scm :noweb yes
(specifications->manifest
 '(
   <<packages("office")>>))
#+end_src

LaTeX
#+begin_src scheme :tangle .config/guix/manifests/latex.scm :noweb yes
(specifications->manifest
 '(
   <<packages("latex")>>))
#+end_src

Desktop Misc
#+begin_src scheme :tangle .config/guix/manifests/desktop-misc.scm :noweb yes
(specifications->manifest
 '(
   <<packages("desktop-misc")>>))
#+end_src

Desktop polybar
#+begin_src scheme :tangle .config/guix/manifests/desktop-polybar.scm :noweb yes
(specifications->manifest
 '(
   <<packages("desktop-polybar")>>))
#+end_src

Desktop rofi
#+begin_src scheme :tangle .config/guix/manifests/desktop-rofi.scm :noweb yes
(specifications->manifest
 '(
   <<packages("desktop-rofi")>>))
#+end_src
** Flatpak
A lot of proprietary desktop applications can be installed most easily with flatpak & flathub.

| Guix dependency    |
|--------------------|
| flatpak            |
| xdg-desktop-portal |

After installation, add the following repositories:
#+begin_example
flatpak remote-add --user --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
flatpak remote-add --user --if-not-exists flathub-beta https://flathub.org/beta-repo/flathub-beta.flatpakrepo
#+end_example

Installation syntax is as follows:
#+begin_example
flatpak install --user <remote> <package>
#+end_example

Packages to install:
#+NAME: flatpak-deps
| Flatpak dependency           | Channel |
|------------------------------+---------|
| com.github.wwmm.pulseeffects | flathub |
| com.discordapp.Discord       | flathub |
| com.jetbrains.DataGrip       | flathub |
| chat.rocket.RocketChat       | flathub |

#+begin_src emacs-lisp :var table=flatpak-deps :wrap example
(mapconcat
 (lambda (c) (concat "flatpak install -y --user " (nth 1 c) " " (nth 0 c)))
 table
 "\n")
#+end_src

#+RESULTS:
#+begin_example
flatpak install -y --user flathub com.github.wwmm.pulseeffects
flatpak install -y --user flathub com.discordapp.Discord
flatpak install -y --user flathub us.zoom.Zoom
flatpak install -y --user flathub com.slack.Slack
#+end_example
** Nix
| Type | Description        |
|------+--------------------|
| TODO | Make nix manifest? |

I probably should've used nix, as almost every program I packaged so far exists in the Nix repo.

But it's easy enough to use Nix on Guix.
#+begin_src conf :tangle ~/.nix-channels
https://nixos.org/channels/nixpkgs-unstable nixpkgs
#+end_src

Don't forget to run the following after the first installation:
#+begin_src sh
nix-channel --update
#+end_src

Installing packages:
#+begin_src
nix-env -i slack
#+end_src
* Services
:PROPERTIES:
:header-args+: :tangle ~/.config/shepherd/init.scm
:END:
[[https://www.gnu.org/software/shepherd/manual/html_node/index.html][GNU Shepherd]] is a service management system for GNU Guix.

I previously used supervisor, but shepherd also seems pretty capable.

** Music
| Category | Guix dependency |
|----------+-----------------|
| music    | mpd             |
| music    | ncmpcpp         |
| music    | picard          |
| music    | mpd-mpc         |
| music    | shntool         |
| music    | cuetools        |
| music    | flac            |

Music player daemon
#+begin_src scheme
(define mpd
  (make <service>
    #:provides '(mpd)
    #:respawn? #t
    #:start (make-forkexec-constructor '("mpd" "--no-daemon"))
    #:stop (make-kill-destructor)))
#+end_src

MPD watcher
#+begin_src scheme
(define sqrt-data-agent-mpd
  (make <service>
    #:provides '(sqrt-data-agent-mpd)
    #:respawn? #t
    #:start (make-forkexec-constructor '("sqrt_data_agent_mpd"))
    #:stop (make-kill-destructor)
    #:requires '(mpd)))
#+end_src
** GNU Mcron
[[https://www.gnu.org/software/mcron/][GNU Mcron]] is a replacement for cron, written in Scheme.

#+begin_src scheme
(define mcron
  (make <service>
    #:provides '(mcron)
    #:respawn? #t
    #:start (make-forkexec-constructor '("mcron"))
    #:stop (make-kill-destructor)))
#+end_src
** ActivityWatch
[[https://activitywatch.net/][ActivityWatch]] is a FOSS time tracker. It tracks screen and application usage and has integrations with browsers, Emacs, etc.

| Guix dependency   |
|-------------------|
| activitywatch-bin |

aw-server
#+begin_src scheme
(define aw-server
  (make <service>
    #:provides '(aw-server)
    #:respawn? #t
    #:start (make-forkexec-constructor '("aw-server"))
    #:stop (make-kill-destructor)))
#+end_src

=aw-watcher-afk= has some problems with statup, so there is a wrapper script

#+begin_src sh :tangle ~/bin/scripts/aw-watcher-afk-wrapper
sleep 5
aw-watcher-afk
#+end_src

aw-watcher-afk
#+begin_src scheme
(define aw-watcher-afk
  (make <service>
    #:provides '(aw-watcher-afk)
    #:requires '(aw-server)
    #:respawn? #t
    #:start (make-forkexec-constructor '("/home/pavel/bin/scripts/aw-watcher-afk-wrapper"))
    #:stop (make-kill-destructor)))
#+end_src

aw-watcher-window
#+begin_src scheme
(define aw-watcher-window
  (make <service>
    #:provides '(aw-watcher-window)
    #:requires '(aw-server)
    #:respawn? #t
    #:start (make-forkexec-constructor '("aw-watcher-window"))
    #:stop (make-kill-destructor)))
#+end_src
** PulseEffects
#+begin_src scheme
(define pulseeffects
  (make <service>
    #:provides '(pulseeffects)
    #:respawn? #t
    #:start (make-forkexec-constructor '("flatpak" "run" "com.github.wwmm.pulseeffects" "--gapplication-service"))
    #:stop (make-kill-destructor)))
#+end_src
** xsettingsd
#+begin_src scheme
(define xsettingsd
  (make <service>
    #:provides '(xsettingsd)
    #:respawn? #t
    #:start (make-forkexec-constructor '("xsettingsd"))
    #:stop (make-kill-destructor)))
#+end_src
** nm-applet
#+begin_src scheme
(define nm-applet
  (make <service>
    #:provides '(nm-applet)
    #:respawn? #t
    #:start (make-forkexec-constructor '("nm-applet"))
    #:stop (make-kill-destructor)))
#+end_src
** Discord rich presence

References:
- [[https://github.com/flathub/com.discordapp.Discord/wiki/Rich-Precense-(discord-rpc)][Rich Precense (discord rpc)]]

#+begin_src scheme
(define discord-rich-presence
  (make <service>
    #:provides '(discord-rich-presence)
    #:one-shot? #t
    #:start (make-system-constructor "ln -sf {app/com.discordapp.Discord,$XDG_RUNTIME_DIR}/discord-ipc-0")))
#+end_src
** Polkit Authentication agent
Launch an authentication agent. Necessary for stuff like =pkexec=. I suspect I'm not doing that the intended way, but it seems to work.

#+begin_src scheme
(define polkit-gnome
  (make <service>
    #:provides '(polkit-gnome)
    #:respawn? #t
    #:start (make-forkexec-constructor '("/home/pavel/.guix-extra-profiles/desktop-misc/desktop-misc/libexec/polkit-gnome-authentication-agent-1"))
    #:stop (make-kill-destructor)))
#+end_src
** Xmodmap
#+begin_src scheme
(define xmodmap
  (make <service>
    #:provides '(xmodmap)
    #:one-shot? #t
    #:start (make-system-constructor "xmodmap /home/pavel/.Xmodmap")))
#+end_src
** VPN
Run my [[file:Guix.org::*OpenVPN][OpenVPN setup]]. Not lauching this automatially, as it requires an active connection.

#+begin_src scheme
(define vpn
  (make <service>
    #:provides '(vpn)
    #:respawn? #t
    #:start (make-forkexec-constructor '("/home/pavel/bin/scripts/vpn-start"))
    #:stop (make-kill-destructor)))
#+end_src
** Davmail
#+begin_src scheme
(define davmail
  (make <service>
    #:provides '(davmail)
    #:respawn? #t
    #:start (make-forkexec-constructor '("/home/pavel/bin/davmail"))
    #:stop (make-kill-destructor)))
#+end_src
** vnstatd
#+begin_src scheme
(define vnstatd
  (make <service>
    #:provides '(vnstatd)
    #:respawn? #t
    #:start (make-forkexec-constructor '("vnstatd" "-n"))
    #:stop (make-kill-destructor)))
#+end_src
** opensnitch
[[https://github.com/evilsocket/opensnitch][opensnitch]] is a linux firewall.

Install it via nix:
#+begin_src bash :tangle no
nix-env -I opensnitchd opensnitch-ui
#+end_src

=sudoers= has to be modified this to work.
#+begin_src scheme
(define opensnitchd
  (make <service>
    #:provides '(opensnitchd)
    #:respawn? #t
    #:start (make-forkexec-constructor '("sudo" "opensnitchd"))
    #:stop (make-kill-destructor)))

(define opensnitch-ui
  (make <service>
    #:provides '(opensnitch-ui)
    #:respawn? #t
    #:start (make-forkexec-constructor '("sudo" "opensnitch-ui"))
    #:stop (make-kill-destructor)))
#+end_src

** Shepherd config
For some reason, running start on a one-shot service started to hang shepherd, not sure why... Turining these off for now.

Register services:
#+begin_src scheme
(register-services
 mpd
 sqrt-data-agent-mpd
 mcron
 aw-server
 aw-watcher-afk
 aw-watcher-window
 pulseeffects
 xsettingsd
 ;; discord-rich-presence
 polkit-gnome
 vpn
 davmail
 ;; xmodmap
 nm-applet
 vnstatd
 ;; opensnitchd
 ;; opensnitch-ui
 )
#+end_src

Daemonize shepherd
#+begin_src scheme
(action 'shepherd 'daemonize)
#+end_src

Run services
#+begin_src scheme
(for-each start '(mpd
                  sqrt-data-agent-mpd
                  mcron
                  aw-server
                  aw-watcher-afk
                  aw-watcher-window
                  pulseeffects
                  xsettingsd
                  ; discord-rich-presence
                  polkit-gnome
                  davmail
                  ; xmodmap
                  nm-applet
                  vnstatd
                  opensnitchd
                  opensnitch-ui))
#+end_src
* Guix settings
Other desktop programs I use are listed below.

| Category     | Guix dependency        | Description                               |
|--------------+------------------------+-------------------------------------------|
| desktop-misc | xprop                  | Tool to display properties of X windows   |
| desktop-misc | arandr                 | GUI to xrandr                             |
| desktop-misc | light                  | Control screen brightness                 |
| desktop-misc | ponymix                | Control PulseAudio CLI                    |
| desktop-misc | pavucontrol            | Control PulseAudio GUI                    |
| desktop-misc | network-manager-applet | Applet to manage network connections      |
| desktop-misc | xmodmap                | Program to modify keybindings on X server |
| desktop-misc | fontconfig             |                                           |
| desktop-misc | polkit-gnome           | Polkit authentication agent               |
| desktop-misc | feh                    | Image viewer. Used to set background      |
| desktop-misc | copyq                  | Clipboard manager                         |
| desktop-misc | thunar                 | My preferred GUI file manager             |
| desktop-misc | xdg-utils              | gives xdg-open and stuff                  |
| desktop-misc | gnome-font-viewer      | view fonts                                |
| desktop-misc | qbittorrent            | torrent client                            |
| desktop-misc | anydesk                | Remote desktop software                   |
| desktop-misc | gnome-disk-utility     | Manage disks                              |
| desktop-misc | gparted                | Manage partitions                         |
| desktop-misc | xev                    | Test input                                |
| desktop-misc | bluez                  | Provides bluetoothctl                     |
| desktop-misc | telegram-desktop       |                                           |
| desktop-misc | font-google-noto-emoji |                                           |
| desktop-misc | remmina                |                                           |
| desktop-misc | android-file-transfer  |                                           |

#+NAME: packages
#+begin_src emacs-lisp :tangle no
(my/format-guix-dependencies)
#+end_src

#+begin_src scheme :tangle .config/guix/manifests/desktop.scm :noweb yes
(specifications->manifest
 '(
   <<packages()>>))
#+end_src
