diff --git a/src/posts/0021-ia-writer-clone-within-doom-emacs/index.org b/src/posts/0021-ia-writer-clone-within-doom-emacs/index.org
index 5a2904f..4517f33 100644
--- a/src/posts/0021-ia-writer-clone-within-doom-emacs/index.org
+++ b/src/posts/0021-ia-writer-clone-within-doom-emacs/index.org
@@ -13,27 +13,35 @@ I think I made something worth to be shared.
 I wanted to have the same effect than in iA writer within emacs.
 And I just reached this.
 
-So the effect I am looking to achieve can be seen in this gif.
+So the effect I am looking to achieve can be seen in this video.
 
-TODO
+#+begin_export html
+<video src="./zen-writer-demo.mov"
+       width="100%"
+       controls="true"
+       autoplay="true">
+</video>
+#+end_export
 
-So mainly it highlight the current sentence (in black) while the rest of
-the text is gray.
+
+It highlight the current sentence (in black) while the rest of the text is
+gray.
 The main issue with the =hl-sentence= package alone is that it set a specific
-face to the current sentence, but does not affect the other text in the buffer.
-In fact to make it work, you need to make the default color grey, and only
-set black for the highlighted text.
+face to the current sentence, but does not affect the other text in the
+buffer.
+In fact to make it work as I would expect, you need to make the default
+color grey, and only set black for the highlighted text.
 
-But nice, I have recently created a personal theme close to that.
-I created a new one.
+Fortunately, I have recently created a personal theme close to that.
+I just created a new specific one.
 Everything is mostly "gray" except the font ~hl-sentence~ which is black.
 
 And that's it.
 So to make it all work I need.
 
-- a Gray theme;
+- a Gray theme,
 - the package ~hl-sentence~,
-- The ~writeroom~ package.
+- the ~writeroom~ package.
 
 So how to achieve that yourself?
 Here is how I do it.
@@ -43,10 +51,10 @@ Here is how I do it.
 :CUSTOM_ID: the-zen-writer-theme
 :END:
 
-
 Download [[./doom-zen-writer-theme.el][Doom Zen-Writer theme]].
 This depend on doom-themes and here is the code of the theme.
-Just put it in you =~/.doom.d/themes= directory
+Just put it in you =~/.doom.d/themes= directory.
+
 ** add this is your ~packages.el~
 :PROPERTIES:
 :CUSTOM_ID: add-this-is-your--packages-el-
@@ -67,13 +75,59 @@ Here is a [[file:zen-writer.el][zen-writer.el]] file that contain my keymaps and
 Put it in you =~/.doom.d/= directory and in you =config.el=
 put
 
-#+begin_src elisp
+#+begin_src emacs-lisp
 (load! "~/.doom.d/zen-writer.el")
 #+end_src
 
 And with this you should pass to zen mode with ~SPC y z z~.
 
+To make the un-zen works.
+You will need to have a ~y/auto-update-theme~ function that set your current theme.
+My function change the theme depending on the time of the day or the day of
+the week.
+
+So here it is for inspiration:
+
+#+begin_src emacs-lisp
+(defun y/auto-update-theme ()
+  "depending on time use different theme"
+  ;; very early => gruvbox-light, solarized-light, nord-light
+  (let* ((day-of-week (format-time-string "%a"))
+         (week-end? (or (equal "Sat" day-of-week)
+                        (equal "Sun" day-of-week)))
+         (hour (nth 2 (decode-time (current-time))))
+         (time-to-sleep? (or (> hour 22) (< hour 7)))
+
+         (theme (cond
+                 (time-to-sleep?  'doom-plain-dark)
+                 (week-end?       'doom-nord-light)
+                 ((<= 7 hour 8)   'doom-gruvbox-light)
+                 ((= 9 hour)      'doom-solarized-light)
+                 ((<= 10 hour 16) 'doom-solarized-white)
+                 ((<= 17 hour 18) 'doom-gruvbox-light)
+                 ((<= 19 hour 22) 'doom-oceanic-next))))
+    (when (not (equal doom-theme theme))
+      (setq doom-theme theme)
+      (load-theme doom-theme t))
+    ;; run that function again next hour
+    (run-at-time (format "%02d:%02d" (+ hour 1) 0) nil 'y/auto-update-theme)))
+#+end_src
+
+** Bonus
+:PROPERTIES:
+:CUSTOM_ID: bonus
+:END:
+
+I use Nerd Fonts and in particular the font `iMWritingDuoS` which is I
+think a clone of the iAWriter font.
+
+#+begin_src emacs-lisp
+(setq doom-variable-pitch-font
+      (font-spec :family "iMWritingDuoS Nerd Font" :size 12))
+#+end_src
+
 I hope you find this useful.
+I really like how it looks now.
 
 ** Annex
 :PROPERTIES:
@@ -281,5 +335,5 @@ Can be an integer to determine the exact padding."
     :background modeline-bg-inactive-alt
     :box (if -modeline-pad `(:line-width ,-modeline-pad :color ,modeline-bg-inactive-alt)))))
 
-;;; doom-plain-theme.el ends here
+;;; doom-zen-writer-theme.el ends here
 #+end_src
diff --git a/src/posts/0021-ia-writer-clone-within-doom-emacs/zen-writer-demo.mov b/src/posts/0021-ia-writer-clone-within-doom-emacs/zen-writer-demo.mov
new file mode 100644
index 0000000..328c4a9
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