diff --git a/knowledge base/yt-dlp.md b/knowledge base/yt-dlp.md
index 03b6772..6eec09d 100644
--- a/knowledge base/yt-dlp.md	
+++ b/knowledge base/yt-dlp.md	
@@ -1,65 +1,95 @@
 # Yt-dlp
 
-Improved fork of [youtube-dl].
-
-## Table of contents <!-- omit in toc -->
+Improved fork of [`youtube-dl`][youtube-dl].
 
 1. [TL;DR](#tldr)
 1. [Further readings](#further-readings)
 
 ## TL;DR
 
-> To be able to merge multiple formats into one, you will also need to install `ffmpeg`.
+> [!tip]
+> Also install [`ffmpeg`][ffmpeg] to support merging multiple formats into one.
+
+<details>
+  <summary>Setup</summary>
 
 ```sh
-# Install it.
-python3 -m pip install -U --user yt-dlp
+brew install 'yt-dlp'
+pipx install 'yt-dlp'
+python3 -m pip install -U --user 'yt-dlp'
+```
 
+</details>
+
+<details>
+  <summary>Usage</summary>
+
+```sh
 # List all available formats.
-yt-dlp -F AK44wAvv2E4
+yt-dlp -F 'AK44wAvv2E4'
+yt-dlp --list-formats 'AK44wAvv2E4'
 
 # See all available information from a video.
-yt-dlp -j BaW_jenozKc
+yt-dlp -j 'BaW_jenozKc'
+yt-dlp --dump-json 'BaW_jenozKc'
 
 # List available subtitiles.
-yt-dlp --list-subs rQnNghhPw6o
+yt-dlp --list-subs 'rQnNghhPw6o'
 
 # Check what name will be used for the destination.
 # Output templates at https://github.com/yt-dlp/yt-dlp#output-template, or use
 # '-j' to see the json file with all of them.
 yt-dlp --get-filename \
-  -o "%(season_number)d.%(episode_number)02d %(episode)U.%(ext)s" \
-  https://www.crunchyroll.com/some/good/serie
+  -o '%(season_number)d.%(episode_number)02d %(episode)U.%(ext)s' \
+  'https://www.crunchyroll.com/some/good/serie'
+
+# Get a video in the best available quality.
+yt-dlp -f 'bestvideo+bestaudio/best' 'https://www.youtube.com/watch?v=abc4EFG89jK'
+yt-dlp --format 'bestvideo+bestaudio/best' 'https://www.youtube.com/watch?v=abc4EFG89jK'
 
 # Download all videos in a YouTube channel.
-yt-dlp -f "bestvideo+bestaudio/best" -ciw \
-  -o "%(title)#S.%(ext)s" -v https://www.youtube.com/c/pbsspacetime/videos
+yt-dlp -ciw 'https://www.youtube.com/c/somechannel/videos'
+yt-dlp --continue --ignore-errors --no-overwrites 'https://www.youtube.com/c/somechannel/videos'
+```
 
-# As above with improvements.
+</details>
+
+<details>
+  <summary>Real world use cases</summary>
+
+```sh
+# Get a video in the best available quality.
+yt-dlp -f 'bestvideo+bestaudio/best' -ciw -o '%(title)#S.%(ext)s' 'https://www.youtube.com/watch?v=dQw4w9WgXcQ'
+
+# Download all videos in a YouTube channel (improved).
 # Slow down the requests to avoid issues in retrieving the data.
 # Include chapters, metadata and selected subtitles.
 # Prefix the file name with its timestamp, or upload date if it is null.
 yt-dlp -ciw \
   --retry-sleep 3 --sleep-requests 0 --sleep-subtitles 3 \
   --embed-chapters --embed-metadata --embed-subs \
-  --sub-langs "(de|en|fr|es|it|ja|nl|zh(-Han.*)?)(-en)?" \
-  --sub-format "ass/srt/best" --write-auto-subs \
-  -f "bestvideo+bestaudio/best" \
-  -o "%(timestamp>%Y-%m-%d,upload_date>%Y-%m-%d)s  %(title)U.%(ext)s" \
-  https://www.youtube.com/c/becausescience/videos
+  --sub-langs '(de|en|fr|es|it|ja|nl|zh(-Han.*)?)(-en)?' \
+  --sub-format 'ass/srt/best' --write-auto-subs \
+  -f 'bestvideo+bestaudio/best' \
+  -o '%(timestamp>%Y-%m-%d,upload_date>%Y-%m-%d)s  %(title)U.%(ext)s' \
+  'https://www.youtube.com/c/becausescience/videos'
 ```
 
+</details>
+
 ## Further readings
 
-- [GitHub]
-- [youtube-dl]
+- [Codebase]
+- [`youtube-dl`][youtube-dl]
 
 <!--
-  References
+  Reference
+  ═╬═Time══
   -->
 
-<!-- Upstream -->
-[github]: https://github.com/yt-dlp/yt-dlp
-
 <!-- Knowledge base -->
+[ffmpeg]: ffmpeg.md
 [youtube-dl]: youtube-dl.md
+
+<!-- Upstream -->
+[Codebase]: https://github.com/yt-dlp/yt-dlp