diff --git a/.gitignore b/.gitignore
index 7d4fe7e9..a8426bd0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ support/documentation/public
 support/documentation/po/po4a.conf
 support/documentation/content/translations/**/*.md
 support/documentation/i18n
+support/documentation/.hugo_build.lock
 public
 vendor/prosody-appimage
 vendor/conversejs-*
diff --git a/support/documentation/content/en/technical/data/_index.md b/support/documentation/content/en/technical/data/_index.md
new file mode 100644
index 00000000..79a71edf
--- /dev/null
+++ b/support/documentation/content/en/technical/data/_index.md
@@ -0,0 +1,50 @@
+---
+title: "Data on the server"
+description: "Date files and folders used on the server"
+weight: 50
+chapter: false
+livechatnotranslation: true
+---
+
+The livechat plugin stores some date on the server,
+in the `/var/www/peertube/storage/plugins/data/peertube-plugin-livechat/` folder.
+This page describes these data.
+
+## prosody
+
+The `prosody` folder is used by the Prosody XMPP server to store its data and logs.
+
+## prosodyAppImage
+
+This plugin uses the Prosoxy XMPP server in background.
+This server code is embedded as an AppImage.
+
+When the plugin starts, it deflate this AppImage in the `prosodyAppImage` folder.
+
+## serverInfos
+
+To handle federation between Peertube instances, the plugin needs to store some
+information concerning remote instances (available protocols, ...).
+
+The plugin stores these data in the `serverInfos/instance_uri` folder
+(where `instance_uri` is replaced by the instance uri).
+
+In each instance's folder, there can be these files:
+
+* `last-update`: json file containing the timestamp of the last information update. So we can avoid refreshing too often.
+* `ws-s2s`: if the server allows XMPP S2S Websocket connections, here are the endpoint information
+* `s2s`: if the server allows direct XMPP S2S connections, here are the port and url information
+
+## videoInfos
+
+To handle federation the plugin needs to store some information about remote videos.
+
+So, each time we open a new remote chat, a file `videoInfos/remote/instance_uri/video_uuid.json` is created
+(where `instance_uri` is the origin instance uri, and `video_uuid` is the video uuid).
+
+This JSON files contain some data about the remote chat (is it enabled, are anonymous users authorized,
+which protocol can we use, ...).
+These data can then be read by the Prosody server to connect to the remote chat.
+
+Moreover, when the current instance builds such data for local videos,
+it stores it in `videoInfos/local/video_uuid.json` (where `video_uuid` is the video uuid).
diff --git a/support/documentation/content/en/technical/sourcecode/_index.md b/support/documentation/content/en/technical/sourcecode/_index.md
new file mode 100644
index 00000000..4269bcd1
--- /dev/null
+++ b/support/documentation/content/en/technical/sourcecode/_index.md
@@ -0,0 +1,93 @@
+---
+title: "Source code"
+description: "Source code organization"
+weight: 10
+chapter: false
+livechatnotranslation: true
+---
+
+This page describes the different source code folders and their content.
+
+## build files
+
+Files in the root dir that begins with `build-` are files used to build the plugin.
+See the `package.json` file for more information.
+
+## assets
+
+### assets/images
+
+The `assets/images` folder contains all icons files used by the plugin.
+
+There is also the `assets/images/avatars` folders, which contains avatars used for anonymous chat users.
+These files are used to generate multiple avatars (see the `build-avatars.js` script for more information).
+
+### assets/styles
+
+The `assets/styles` folder contains the livechat plugin SCSS source files.
+
+## build
+
+The `build` folder is not part of the source code, but is used to put some files during the build process.
+
+For example, `build-conversejs.js` use the folder `build/conversejs` to build a customized ConverseJS version.
+
+## client
+
+The `client` folder contains the front-end source code.
+
+Files like `client/common-client-plugin.ts`, `client/videowatch-client-plugin.ts`, ... are the base files that
+are loaded by Peertube for different "scopes" (`common`, `videowatch`, ...).
+Please refer to the [Peertube plugin documentation](https://docs.joinpeertube.org/contribute/plugins)
+ for more information.
+
+## conversejs
+
+The `conversejs` folder contains code relative to the use of ConverseJS.
+
+### conversejs/custom
+
+The `conversejs/custom` folder contains some files that are used to customize ConverseJS.
+See the `build-conversejs.sh` script for more information.
+
+## dist
+
+The dist folder is where goes all files created during the build process.
+It is not part of the source code.
+
+## documentation
+
+The folder `documentation` is deprecated.
+We only keep files in this folder to avoid dead links
+(links to these files were shared on many websites or social media posts).
+
+The source code for the new documentation is in `support/documentation/content/en`,
+and is used to generate the documentation web site.
+
+## languages
+
+The folder `languages` contains the languages files.
+These files are [translated using Weblate](/peertube-plugin-livechat/contributing/translate/)).
+
+## prosody-modules
+
+The `prosody-modules` folder contains some modules used by Prosody.
+
+Some of them are "officials" plugins, others are specific to this plugin.
+
+## server
+
+The `server` folder contains the backend source code.
+
+## shared
+
+The `shared` folder contains comme code that will be used both on frontend and backend.
+
+## support/documentation
+
+The `support/documentation` contains the documentation source code.
+
+## vendor
+
+The `vendor` folder is not part of the source code.
+It is used during the build process to download some external source code.