diff --git a/README.md b/README.md
index ad1864e..a57fe37 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ Kiwix is an offline reader for online content like Wikipedia, Project Gutenberg,
 - Able to deal with one ZIM file or XML library files
 
 
-**Shipped version:** 3.5.0~ynh3
+**Shipped version:** 3.5.0~ynh4
 
 **Demo:** http://library.kiwix.org/
 
diff --git a/README_fr.md b/README_fr.md
index 2c02e16..3061e17 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -26,7 +26,7 @@ Kiwix est un lecteur hors-ligne pour contenus web qui permet en particulier d’
 - Embedded in Kiwix UI
 - Capable de traiter un fichier ZIM ou des fichiers de bibliothèque XML
 
-**Version incluse :** 3.5.0~ynh3
+**Version incluse :** 3.5.0~ynh4
 
 **Démo :** http://library.kiwix.org/
 
diff --git a/conf/systemd.service b/conf/systemd.service
index 9ee4928..c5ca7f5 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -5,8 +5,7 @@ Description=Kiwix: Sharing Web content
 Type=simple
 User=__APP__
 Group=__APP__
-ExecStart=__INSTALL_DIR__/kiwix-serve --daemon --address 127.0.0.1 --port __PORT__ --library __DATA_DIR__/library.xml --urlRootLocation=__PATH__/
-RemainAfterExit=yes
+ExecStart=__INSTALL_DIR__/kiwix-serve --address 127.0.0.1 --port __PORT__ --library __DATA_DIR__/library.xml --urlRootLocation=__PATH__/
 Restart=on-abort
 RestartSec=5s
 
diff --git a/config_panel.toml b/config_panel.toml
new file mode 100644
index 0000000..3226aa9
--- /dev/null
+++ b/config_panel.toml
@@ -0,0 +1,19 @@
+version = "1.0"
+
+[main]
+name.en = "Upload content"
+
+    [main.upload]
+
+        [main.upload.upload_url]
+        default = ""
+        type = "string"
+        ask.en = "Content URL"
+        help.en = "For example: https://download.kiwix.org/zim/other/pokepedia_fr_all_maxi_2021-01.zim"
+        help.fr = "Par exemple : https://download.kiwix.org/zim/other/pokepedia_fr_all_maxi_2021-01.zim"
+
+        [main.upload.upload_button]
+        ask.en = "Upload"
+        type = "button"
+        style = "success"
+        enabled = "upload_url"
diff --git a/doc/ADMIN.md b/doc/ADMIN.md
index ef264bb..e5c678e 100644
--- a/doc/ADMIN.md
+++ b/doc/ADMIN.md
@@ -1,5 +1,9 @@
 ### How to add zim files?
 
+#### Add a zin file through its URL
+- Click on the "Upload content" tab above.
+
+#### Add a zim file by hand
 - Download one or more ZIM files, e.g. from [https://download.kiwix.org/zim/](https://download.kiwix.org/zim/)
 - Put the ZIM files into `__DATA_DIR__`
 - Add them to the library with the following command:
diff --git a/doc/ADMIN_fr.md b/doc/ADMIN_fr.md
index 79f4ef7..013312f 100644
--- a/doc/ADMIN_fr.md
+++ b/doc/ADMIN_fr.md
@@ -1,5 +1,9 @@
 ### Comment ajouter des fichiers ZIM ?
 
+#### Ajouter un fichier ZIM via son URL
+- Sélectionnez l'onglet "Upload content" qui se trouve ci-dessus.
+
+#### Ajouter un fichier ZIM à la main
 - Téléchargez un ou plusieurs fichiers ZIM, par ex. [https://download.kiwix.org/zim/](https://download.kiwix.org/zim/)
 - Mettez les fichiers ZIM dans `__DATA_DIR__/`
 - Ajoutez-les à la bibliothèque avec la commande suivante :
diff --git a/manifest.toml b/manifest.toml
index 8ebfde3..7386b5f 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -5,7 +5,7 @@ name = "Kiwix"
 description.en = "Sharing Web content with people without Internet access"
 description.fr = "Partager du contenu Web avec des personnes sans accès à Internet"
 
-version = "3.5.0~ynh3"
+version = "3.5.0~ynh4"
 
 maintainers = ["eric_G"]
 
@@ -23,13 +23,12 @@ multi_instance = true
 ldap = false
 sso = false
 disk = "50M"
-ram.build = "50M"
+ram.build = "100M"
 ram.runtime = "50M"
 
 [install]
     [install.domain]
     type = "domain"
-    full_domain = true
 
     [install.init_main_permission]
     type = "group"
diff --git a/scripts/config b/scripts/config
new file mode 100644
index 0000000..26a4c5e
--- /dev/null
+++ b/scripts/config
@@ -0,0 +1,15 @@
+#!/bin/bash
+source /usr/share/yunohost/helpers
+ynh_abort_if_errors
+
+function run__upload_button() {
+    local data_dir=$(ynh_app_setting_get --app=$app --key=data_dir)
+    local filename="$(echo "$upload_url"  | awk -F/ '{print $NF}')"
+    ynh_print_info --message="Downloading file…"
+    wget --tries 3 --no-dns-cache --timeout 900 --output-document="$data_dir/$filename" "$upload_url" 2>&1
+    ynh_print_info --message="Adding file to Kiwix library"
+    $install_dir/kiwix-manage $data_dir/library.xml add "$data_dir/$filename"
+    yunohost service restart kiwix
+}
+
+ynh_app_config_run $1
diff --git a/scripts/install b/scripts/install
index e73a20e..059d53b 100755
--- a/scripts/install
+++ b/scripts/install
@@ -23,13 +23,18 @@ chown -R $app:www-data "$install_dir"
 chmod +x $install_dir/{kiwix-manage,kiwix-serve,kiwix-search}
 
 #=================================================
-# NGINX CONFIGURATION
+# SYSTEM CONFIGURATION
 #=================================================
-ynh_script_progression --message="Configuring NGINX web server..." --weight=1
+ynh_script_progression --message="Adding system configurations related to $app..." --weight=1
 
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
+# Create a dedicated systemd config
+ynh_add_systemd_config
+
+yunohost service add $app --description="Internet without Internet access" --log="systemd"
+
 #=================================================
 # CREATE DATA DIRECTORY
 #=================================================
@@ -38,25 +43,9 @@ ynh_script_progression --message="Creating a data directory..." --weight=1
 pushd $data_dir
 	ynh_exec_warn_less ynh_exec_as $app curl -LO https://download.kiwix.org/zim/wikipedia/wikipedia_fr_climate_change_mini_2023-04.zim > /dev/null
 popd
+
 ynh_exec_warn_less ynh_exec_as $app $install_dir/kiwix-manage $data_dir/library.xml add $data_dir/*.zim
 
-#=================================================
-# SETUP SYSTEMD
-#=================================================
-ynh_script_progression --message="Configuring a systemd service..." --weight=2
-
-# Create a dedicated systemd config
-ynh_add_systemd_config
-
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# INTEGRATE SERVICE IN YUNOHOST
-#=================================================
-ynh_script_progression --message="Integrating service in YunoHost..." --weight=1
-
-yunohost service add $app --log="systemd"
-
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 06fb827..4c29204 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -10,10 +10,11 @@ source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
-# STANDARD REMOVE
+# REMOVE SYSTEM CONFIGURATIONS
 #=================================================
-# REMOVE SERVICE INTEGRATION IN YUNOHOST
+# REMOVE SYSTEMD SERVICE 
 #=================================================
+ynh_script_progression --message="Removing system configurations related to $app..." --weight=1
 
 # Remove the service from the list of services known by YunoHost (added from `yunohost service add`)
 if ynh_exec_warn_less yunohost service status $app >/dev/null
@@ -22,19 +23,9 @@ then
 	yunohost service remove $app
 fi
 
-#=================================================
-# STOP AND REMOVE SERVICE
-#=================================================
-ynh_script_progression --message="Stopping and removing the systemd service..." --weight=1
-
 # Remove the dedicated systemd config
 ynh_remove_systemd_config
 
-#=================================================
-# REMOVE NGINX CONFIGURATION
-#=================================================
-ynh_script_progression --message="Removing NGINX web server configuration..." --weight=1
-
 # Remove the dedicated NGINX config
 ynh_remove_nginx_config
 
diff --git a/scripts/restore b/scripts/restore
index 7f62f91..5af63ad 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -10,15 +10,6 @@
 source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# STANDARD RESTORATION STEPS
-#=================================================
-# RESTORE THE NGINX CONFIGURATION
-#=================================================
-ynh_script_progression --message="Restoring the NGINX configuration..." --weight=1
-
-ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
-
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
@@ -26,8 +17,6 @@ ynh_script_progression --message="Restoring the app main directory..." --weight=
 
 ynh_restore_file --origin_path="$install_dir"
 
-chmod 750 "$install_dir"
-chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
 
 #=================================================
@@ -40,21 +29,16 @@ ynh_restore_file --origin_path="$data_dir" --not_mandatory
 chown -R $app:www-data "$data_dir"
 
 #=================================================
-# SPECIFIC RESTORATION
+# RESTORE SYSTEM CONFIGURATIONS
 #=================================================
-# RESTORE SYSTEMD
-#=================================================
-ynh_script_progression --message="Restoring the systemd configuration..." --weight=1
+ynh_script_progression --message="Restoring system configurations related to $app..." --weight=1
+
+ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
 ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
 systemctl enable $app.service --quiet
 
-#=================================================
-# INTEGRATE SERVICE IN YUNOHOST
-#=================================================
-ynh_script_progression --message="Integrating service in YunoHost..." --weight=1
-
-yunohost service add $app --log="systemd"
+yunohost service add $app --description="Internet without Internet access" --log="systemd"
 
 #=================================================
 # START SYSTEMD SERVICE
diff --git a/scripts/upgrade b/scripts/upgrade
index 2c79b2f..1126b63 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -37,35 +37,21 @@ then
 	ynh_setup_source --dest_dir="$install_dir" 
 fi
 
-chmod 750 "$install_dir"
-chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
 chmod +x $install_dir/{kiwix-manage,kiwix-serve,kiwix-search}
 
 #=================================================
-# NGINX CONFIGURATION
+# REAPPLY SYSTEM CONFIGURATIONS
 #=================================================
-ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=1
+ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1
 
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# SETUP SYSTEMD
-#=================================================
-ynh_script_progression --message="Upgrading systemd configuration..." --weight=3
-
 # Create a dedicated systemd config
 ynh_add_systemd_config
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# INTEGRATE SERVICE IN YUNOHOST
-#=================================================
-ynh_script_progression --message="Integrating service in YunoHost..." --weight=2
-
-yunohost service add $app --log="systemd"
+yunohost service add $app --description="Internet without Internet access" --log="systemd"
 
 #=================================================
 # START SYSTEMD SERVICE