diff --git a/content/posts/2021-10-04-emacs-i3.md b/content/posts/2021-10-04-emacs-i3.md
index 049d727..1ea3bbb 100644
--- a/content/posts/2021-10-04-emacs-i3.md
+++ b/content/posts/2021-10-04-emacs-i3.md
@@ -14,6 +14,12 @@ But why not just use EXWM? One key reason is that to my taste (and perhaps on my
 
 One common point of criticism of i3 is that it is not extensible enough, especially compared to WMs that are configured in an actual programing language, like the mentioned XMonad, [Qtile](http://www.qtile.org/), [Awesome](https://awesomewm.org/), etc. But I think i3's extensibility is underappreciated, although the contents of this article may lie closer to the limits of how far one can go there.
 
+Here is a small demo of how it currently works:
+
+<video controls width="100%">
+<source src="/ox-hugo/i3-emacs-demo.mp4" type="video/mp4">
+</video>
+
 
 ## Emacs integration {#emacs-integration}
 
@@ -77,7 +83,7 @@ One caveat here is that the minibuffer is always the bottom-most Emacs window, s
 
 The relevant section of the i3 config looks like this:
 
-```conf-space
+```bash
 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
@@ -141,7 +147,7 @@ And the implementation of the move command.
 
 The relevant section of the i3 config:
 
-```conf-space
+```bash
 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
@@ -184,7 +190,7 @@ This function also checks whether there is space to resize in the given directio
 
 Here I'm following the default configuration of i3, which creates a "submode" to resize windows.
 
-```conf-space
+```bash
 mode "resize" {
 
     bindsym h exec emacs-i3-integration resize shrink width 10 px or 10 ppt
@@ -240,7 +246,7 @@ i3_balance_workspace
 
 The i3 config for this command:
 
-```conf-space
+```bash
 bindsym $mod+e exec emacs-i3-integration layout toggle split
 ```
 
@@ -272,14 +278,14 @@ Finally, the entrypoint for the Emacs integration. In addition to the commands d
 
 The rest of the relevant i3 config to do the splits:
 
-```conf-space
+```bash
 bindsym $mod+s exec emacs-i3-integration split h
 bindsym $mod+v exec emacs-i3-integration split v
 ```
 
 And to kill the window:
 
-```conf-space
+```bash
 bindsym $mod+Shift+q exec emacs-i3-integration kill
 ```
 
@@ -290,7 +296,7 @@ As I use i3's tabbed layout quite extensively, occasionally I want to switch out
 
 As a workaround, I found a small Rust program called [i3-switch-tabs](https://github.com/nikola-kocic/i3-switch-tabs), which also communicates with i3 via its IPC to switch the top-level tab. I've written a [Guix package definition](https://github.com/SqrtMinusOne/channel-q/blob/master/i3-switch-tabs.scm) for that as well.
 
-```conf-space
+```bash
 bindsym $mod+period exec i3-switch-tabs right
 bindsym $mod+comma exec i3-switch-tabs left
 ```
diff --git a/org/2021-10-04-emacs-i3.org b/org/2021-10-04-emacs-i3.org
index d8fc8bb..86b3ca5 100644
--- a/org/2021-10-04-emacs-i3.org
+++ b/org/2021-10-04-emacs-i3.org
@@ -12,6 +12,13 @@ But why not just use EXWM? One key reason is that to my taste (and perhaps on my
 
 One common point of criticism of i3 is that it is not extensible enough, especially compared to WMs that are configured in an actual programing language, like the mentioned XMonad, [[http://www.qtile.org/][Qtile]], [[https://awesomewm.org/][Awesome]], etc. But I think i3's extensibility is underappreciated, although the contents of this article may lie closer to the limits of how far one can go there.
 
+Here is a small demo of how it currently works:
+#+begin_export html
+<video controls width="100%">
+<source src="/ox-hugo/i3-emacs-demo.mp4" type="video/mp4">
+</video>
+#+end_export
+
 * Emacs integration
 What I'm trying to do is actually quite simple, so I'm somewhat surprised I didn't find anything similar on the Internet. But I didn't look too hard.
 
@@ -64,7 +71,7 @@ One caveat here is that the minibuffer is always the bottom-most Emacs window, s
 #+END_SRC
 
 The relevant section of the i3 config looks like this:
-#+BEGIN_SRC conf-space
+#+BEGIN_SRC bash
 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
@@ -120,7 +127,7 @@ And the implementation of the move command.
 #+END_SRC
 
 The relevant section of the i3 config:
-#+BEGIN_SRC conf-space
+#+BEGIN_SRC bash
 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
@@ -159,7 +166,7 @@ This function also checks whether there is space to resize in the given directio
 #+END_SRC
 
 Here I'm following the default configuration of i3, which creates a "submode" to resize windows.
-#+BEGIN_SRC conf-space
+#+BEGIN_SRC bash
 mode "resize" {
 
     bindsym h exec emacs-i3-integration resize shrink width 10 px or 10 ppt
@@ -210,7 +217,7 @@ i3_balance_workspace
 #+END_SRC
 
 The i3 config for this command:
-#+BEGIN_SRC conf-space
+#+BEGIN_SRC bash
 bindsym $mod+e exec emacs-i3-integration layout toggle split
 #+END_SRC
 
@@ -238,13 +245,13 @@ Finally, the entrypoint for the Emacs integration. In addition to the commands d
 #+END_SRC
 
 The rest of the relevant i3 config to do the splits:
-#+BEGIN_SRC conf-space
+#+BEGIN_SRC bash
 bindsym $mod+s exec emacs-i3-integration split h
 bindsym $mod+v exec emacs-i3-integration split v
 #+END_SRC
 
 And to kill the window:
-#+BEGIN_SRC conf-space
+#+BEGIN_SRC bash
 bindsym $mod+Shift+q exec emacs-i3-integration kill
 #+END_SRC
 
@@ -253,7 +260,7 @@ As I use i3's tabbed layout quite extensively, occasionally I want to switch out
 
 As a workaround, I found a small Rust program called [[https://github.com/nikola-kocic/i3-switch-tabs][i3-switch-tabs]], which also communicates with i3 via its IPC to switch the top-level tab. I've written a [[https://github.com/SqrtMinusOne/channel-q/blob/master/i3-switch-tabs.scm][Guix package definition]] for that as well.
 
-#+BEGIN_SRC conf-space
+#+BEGIN_SRC bash
 bindsym $mod+period exec i3-switch-tabs right
 bindsym $mod+comma exec i3-switch-tabs left
 #+END_SRC
diff --git a/org/videos/i3-emacs-demo.mp4 b/org/videos/i3-emacs-demo.mp4
new file mode 100644
index 0000000..052081a
Binary files /dev/null and b/org/videos/i3-emacs-demo.mp4 differ
diff --git a/static/ox-hugo/i3-emacs-demo.mp4 b/static/ox-hugo/i3-emacs-demo.mp4
new file mode 100644
index 0000000..052081a
Binary files /dev/null and b/static/ox-hugo/i3-emacs-demo.mp4 differ