chore(kb/jellyfin): expand notes

knowledge base/jellyfin.md

@@ -9,7 +9,92 @@ Allows streaming to any device from one's own server, with no strings attached.
 
 ## TL;DR
 
-TODO
+_Libraries_ are virtual collections of media.<br/>
+They can contain files from several different locations on the server.
+
+One will see a page to add libraries when they first create the server.<br/>
+Libraries can be then added, modified, or removed at any time from the settings.
+
+<details style='padding: 0 0 1rem 1rem'>
+
+1. Log in to Jellyfin's web interface in the web browser.
+1. On the user menu in the top right corner, select _Dashboard_.
+1. On the left side menu, in the _Server_ section, select _Libraries_ > _Libraries_.
+1. Take action:
+   - Click _Add Media Library_ to add a new library.
+   - Click the hamburger menu of the library to modify, then select _Manage library_ to make changes to it.
+   - Click the hamburger menu of the library to delete, then select _Remove_ to delete it.
+
+</details>
+
+A single library can encompass multiple paths.<br/>
+Exclude a folder and its children from scans by creating **empty** `.ignore` files within those directories.<br/>
+Exclude only specific files and folders from scans by **listing** them in the `.ignore` file within their directory. Use
+the same format as git's `.gitignore` files. This feature is available since version 10.11.
+
+The three most common types of content are _movies_, _shows_, and _music_.<br/>
+These have the best support in client apps. One can also add other types of media, such as books or photos.<br/>
+When having different types of media in a single folder, one can also label it as _mixed_. In this case, it will be a
+generic folder view that displays all files in that library. Use of this type is currently discouraged.
+
+Jellyfin **suggests** organizing and naming files in specific ways depending on their content type.<br/>
+Doing so automates the recognition process, but allows to manually identify the media later.
+
+<details style='padding: 0 0 0 1rem'>
+  <summary>Movies</summary>
+
+Refer [Media / Movies][documentation / media / movies].
+
+Movies should be organized into individual folders for each movie. The folder can optionally contain extra files.<br/>
+The folder containing the movie should be named in the format `Name (optional year) [optional metadata provider id]`.
+
+```plaintext
+Movies
+├── The Illusionist (2006)
+│   ├── The Illusionist (2006).mp4
+│   ├── The Illusionist (2006).nfo
+│   ├── The Illusionist (2006).en_us.srt
+│   ├── cover.png
+│   └── theme.mp3
+├── …
+└── Your Name. (2016) [imdbid-tt5311514]
+    ├── backdrop.jpg
+    └── VIDEO_TS
+        ├── VIDEO_TS.BUP
+        ├── VIDEO_TS.IFO
+        ├── VIDEO_TS.VOB
+        ├── VTS_01_0.BUP
+        ├── VTS_01_0.IFO
+        ├── VTS_01_0.VOB
+        ├── VTS_01_1.VOB
+        └── VTS_01_2.VOB
+```
+
+</details>
+<details style='padding: 0 0 1rem 1rem'>
+  <summary>Shows</summary>
+
+Refer [Media / Shows][documentation / media / shows].
+
+Shows should be organized into series folders, then into season folders under each series.<br/>
+The folder containing the show should be named in the format `Name (optional year) [optional metadata provider id]`.
+
+```plaintext
+Shows
+├── Konosuba (2016)
+│   ├── Season 1
+│   │   ├── Konosuba (2016) S01E01 This Self-Proclaimed Goddess and Reincarnation in Another World!.avi
+│   │   ├── Konosuba (2016) S01E01 This Self-Proclaimed Goddess and Reincarnation in Another World!.nfo
+│   │   ├── Konosuba (2016) S01E01 This Self-Proclaimed Goddess and Reincarnation in Another World!.en_us.srt
+│   │   ├── …
+│   │   └── Konosuba (2016) S01E10 Final Flame for this Over-the-top Fortress!.en_us.srt
+│   └── Season 2
+│       ├── Konosuba S02E01 …
+│       └── …
+├── …
+```
+
+</details>
 
 <!-- Uncomment if used
 <details>
@@ -62,6 +147,8 @@ TODO
 <!-- Upstream -->
 [Blog]: https://jellyfin.org/posts
 [Codebase]: https://github.com/jellyfin/jellyfin
+[Documentation / Media / Movies]: https://jellyfin.org/docs/general/server/media/movies
+[Documentation / Media / Shows]: https://jellyfin.org/docs/general/server/media/shows
 [Documentation]: https://jellyfin.org/docs
 [Website]: https://jellyfin.org/