diff --git a/README.md b/README.md
index b63cbec..84bd740 100644
--- a/README.md
+++ b/README.md
@@ -42,10 +42,8 @@ It is a self-hosted monitoring tool like "Uptime Robot".
 - Requires a full dedicated domain
 - ARM architecture not supported
 - This app needs a manual post-install
-- No upgrade script in this package
-- No restore script in this package
-- Backup script is untested in this package
 - Uses N to install specific nodejs version
+- We could pre-configure mail notifications with YunoHost mail server as an improvement.
 <!-- * Any known limitations, constrains or stuff not working, such as (but not limited to):
     * requiring a full dedicated domain ?
     * architectures not supported ?
diff --git a/README_fr.md b/README_fr.md
index 37df546..6ef0802 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -38,10 +38,8 @@ It is a self-hosted monitoring tool like "Uptime Robot".
 - Requires a full dedicated domain
 - ARM architecture not supported
 - This app needs a manual post-install
-- No upgrade script in this package
-- No restore script in this package
-- Backup script is untested in this package
 - Uses N to install specific nodejs version
+- We could pre-configure mail notifications with YunoHost mail server as an improvement.
 <!-- * Any known limitations, constrains or stuff not working, such as (but not limited to):
     * requiring a full dedicated domain ?
     * architectures not supported ?
diff --git a/doc/DISCLAIMER.md b/doc/DISCLAIMER.md
index e6ad93d..f54e38b 100644
--- a/doc/DISCLAIMER.md
+++ b/doc/DISCLAIMER.md
@@ -1,10 +1,8 @@
 - Requires a full dedicated domain
 - ARM architecture not supported
 - This app needs a manual post-install
-- No upgrade script in this package
-- No restore script in this package
-- Backup script is untested in this package
 - Uses N to install specific nodejs version
+- We could pre-configure mail notifications with YunoHost mail server as an improvement.
 <!-- * Any known limitations, constrains or stuff not working, such as (but not limited to):
     * requiring a full dedicated domain ?
     * architectures not supported ?
diff --git a/scripts/backup b/scripts/backup
index b66ce5e..de13821 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -48,13 +48,13 @@ ynh_print_info --message="Declaring files to be backed up..."
 # BACKUP THE APP MAIN DIR
 #=================================================
 
-ynh_backup --src_path="$final_path"
+ynh_backup --src_path="$final_path" --is_big
 
 #=================================================
 # BACKUP THE DATA DIR
 #=================================================
 
-ynh_backup --src_path="$datadir" --is_big
+ynh_backup --src_path="$datadir"
 
 #=================================================
 # BACKUP THE NGINX CONFIGURATION
@@ -95,7 +95,7 @@ ynh_backup --src_path="/etc/systemd/system/$app.service"
 
 # ynh_backup --src_path="/etc/cron.d/$app"
 
-ynh_backup --src_path="/etc/$app/"
+# ynh_backup --src_path="/etc/$app/"
 
 #=================================================
 # BACKUP THE MYSQL DATABASE
diff --git a/scripts/install b/scripts/install
index 15ec1f4..d7aaf65 100755
--- a/scripts/install
+++ b/scripts/install
@@ -295,22 +295,20 @@ ynh_script_progression --message="Configuring a systemd service..." --time --wei
 ynh_add_systemd_config
 
 #=================================================
-# SETUP APPLICATION WITH CURL
+# SETUP APPLICATION
 #=================================================
 
-### We cannot use it since this app uses websocket exclusively.
+### It could be tricky to use CURL since this app uses websocket exclusively.
+# curl --data-binary '{"jsonrpc": "2.0", "method": "VideoLibrary.Scan", "id": "1"}' -H "Upgrade:websocket" -H 'content-type: application/json;' http://localhost:9090/jsonrpc
 
-# # Set the app as temporarily public for curl call
-# ynh_script_progression --message="Configuring SSOwat..." --time --weight=1
-# # Making the app public for curl
-# ynh_permission_update --permission="main" --add="visitors"
+### We could write to its SQLite. Didn't find where the language preferences are though.
 
-# # Installation with curl
-# ynh_script_progression --message="Finalizing installation..." --time --weight=1
-# ynh_local_curl "/" "key1=value1" "key2=value2" "key3=value3"
+# password_hashed = $(htpasswd -bnBC 10 "" $password | tr -d ':\n')
+# sqlite3 $final_path/db/kuma.db <<EOF
+# INSERT INTO "main"."user" ("id", "username", "password", "active", "timezone", "twofa_secret", "twofa_status", "twofa_last_token") VALUES ('1', '$admin', '$password_hashed', '1', '', '', '0', '');
+# EOF
 
-# # Remove the public access
-# ynh_permission_update --permission="main" --remove="visitors"
+### We could pre-configure mail notifications.
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/remove b/scripts/remove
index 3fd874a..95625ce 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -78,7 +78,7 @@ ynh_remove_nodejs
 #=================================================
 # REMOVE APP MAIN DIR
 #=================================================
-ynh_script_progression --message="Removing app main directory..." --time --weight=1
+ynh_script_progression --message="Removing app main directory and dependencies..." --time --weight=2
 
 # Remove the app directory securely
 ynh_secure_remove --file="$final_path"
@@ -139,7 +139,7 @@ ynh_script_progression --message="Removing various files..." --time --weight=1
 # ynh_secure_remove --file="/etc/cron.d/$app"
 
 # Remove a directory securely
-ynh_secure_remove --file="/etc/$app"
+# ynh_secure_remove --file="/etc/$app"
 
 # Remove the log files
 ynh_secure_remove --file="/var/log/$app"
diff --git a/scripts/restore b/scripts/restore
index e79f544..cbf2e8d 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -31,9 +31,9 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-db_user=$db_name
-phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+# db_name=$(ynh_app_setting_get --app=$app --key=db_name)
+# db_user=$db_name
+# phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
 #=================================================
@@ -97,13 +97,6 @@ chmod 750 "$datadir"
 chmod -R o-rwx "$datadir"
 chown -R $app:www-data "$datadir"
 
-#=================================================
-# RESTORE THE PHP-FPM CONFIGURATION
-#=================================================
-# ynh_script_progression --message="Restoring the PHP-FPM configuration..." --time --weight=1
-
-# ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
-
 #=================================================
 # RESTORE FAIL2BAN CONFIGURATION
 #=================================================
@@ -115,10 +108,29 @@ chown -R $app:www-data "$datadir"
 
 #=================================================
 # SPECIFIC RESTORATION
+#=================================================
+
+#=================================================
+# INSTALL NODEJS
+#=================================================
+ynh_script_progression --message="Reinstalling NodeJS..." --time --weight=2
+
+ynh_install_nodejs --nodejs_version=$nodejs_version
+
+#=================================================
+# NODEJS Version
+#=================================================
+
+ynh_use_nodejs
+
 #=================================================
 # REINSTALL DEPENDENCIES
 #=================================================
-ynh_script_progression --message="Reinstalling dependencies..." --time --weight=1
+ynh_script_progression --message="Reinstalling dependencies..." --time --weight=7
+cd $final_path && ynh_exec_warn_less $ynh_npm install
+ynh_script_progression --message="Downloading Uptime Kuma frontend..." --time --weight=1
+ynh_exec_warn_less wget https://github.com/louislam/uptime-kuma/releases/download/1.10.0/dist.tar.gz
+ynh_exec_as $app tar -xvf dist.tar.gz --directory=$final_path
 
 # Define and install dependencies
 # ynh_install_app_dependencies $pkg_dependencies
@@ -135,11 +147,11 @@ ynh_script_progression --message="Reinstalling dependencies..." --time --weight=
 #=================================================
 # RESTORE VARIOUS FILES
 #=================================================
-ynh_script_progression --message="Restoring various files..." --time --weight=1
+# ynh_script_progression --message="Restoring various files..." --time --weight=1
 
 # ynh_restore_file --origin_path="/etc/cron.d/$app"
 
-ynh_restore_file --origin_path="/etc/$app/"
+# ynh_restore_file --origin_path="/etc/$app/"
 
 #=================================================
 # RESTORE SYSTEMD
@@ -175,9 +187,9 @@ ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$ap
 #=================================================
 # RELOAD NGINX AND PHP-FPM
 #=================================================
-ynh_script_progression --message="Reloading NGINX web server and PHP-FPM..." --time --weight=1
+ynh_script_progression --message="Reloading NGINX web server..." --time --weight=1
 
-ynh_systemd_action --service_name=php$phpversion-fpm --action=reload
+# ynh_systemd_action --service_name=php$phpversion-fpm --action=reload
 ynh_systemd_action --service_name=nginx --action=reload
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 0e27bcf..1f7813f 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -1,167 +1,153 @@
-# #!/bin/bash
+#!/bin/bash
 
-# See
-# https://github.com/louislam/uptime-kuma/wiki/%F0%9F%86%99-How-to-Update
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
 
-# #=================================================
-# # GENERIC START
-# #=================================================
-# # IMPORT GENERIC HELPERS
-# #=================================================
+source _common.sh
+source /usr/share/yunohost/helpers
 
-# source _common.sh
-# source /usr/share/yunohost/helpers
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_script_progression --message="Loading installation settings..." --time --weight=1
 
-# #=================================================
-# # LOAD SETTINGS
-# #=================================================
-# ynh_script_progression --message="Loading installation settings..." --time --weight=1
+app=$YNH_APP_INSTANCE_NAME
 
-# app=$YNH_APP_INSTANCE_NAME
-
-# domain=$(ynh_app_setting_get --app=$app --key=domain)
-# path_url=$(ynh_app_setting_get --app=$app --key=path)
+domain=$(ynh_app_setting_get --app=$app --key=domain)
+path_url=$(ynh_app_setting_get --app=$app --key=path)
 # admin=$(ynh_app_setting_get --app=$app --key=admin)
-# final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 # language=$(ynh_app_setting_get --app=$app --key=language)
 # db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 
-# #=================================================
-# # CHECK VERSION
-# #=================================================
+#=================================================
+# CHECK VERSION
+#=================================================
 
-# ### This helper will compare the version of the currently installed app and the version of the upstream package.
-# ### $upgrade_type can have 2 different values
-# ### - UPGRADE_APP if the upstream app version has changed
-# ### - UPGRADE_PACKAGE if only the YunoHost package has changed
-# ### ynh_check_app_version_changed will stop the upgrade if the app is up to date.
-# ### UPGRADE_APP should be used to upgrade the core app only if there's an upgrade to do.
-# upgrade_type=$(ynh_check_app_version_changed)
+### This helper will compare the version of the currently installed app and the version of the upstream package.
+### $upgrade_type can have 2 different values
+### - UPGRADE_APP if the upstream app version has changed
+### - UPGRADE_PACKAGE if only the YunoHost package has changed
+### ynh_check_app_version_changed will stop the upgrade if the app is up to date.
+### UPGRADE_APP should be used to upgrade the core app only if there's an upgrade to do.
+upgrade_type=$(ynh_check_app_version_changed)
 
-# #=================================================
-# # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
-# #=================================================
-# ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --time --weight=1
+#=================================================
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --time --weight=1
 
-# # Backup the current version of the app
-# ynh_backup_before_upgrade
-# ynh_clean_setup () {
-# 	# Restore it if the upgrade fails
-# 	ynh_restore_upgradebackup
-# }
-# # Exit if an error occurs during the execution of the script
-# ynh_abort_if_errors
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+	# Restore it if the upgrade fails
+	ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
 
-# #=================================================
-# # STANDARD UPGRADE STEPS
-# #=================================================
-# # STOP SYSTEMD SERVICE
-# #=================================================
-# ynh_script_progression --message="Stopping a systemd service..." --time --weight=1
+#=================================================
+# STANDARD UPGRADE STEPS
+#=================================================
+# STOP SYSTEMD SERVICE
+#=================================================
+ynh_script_progression --message="Stopping a systemd service..." --time --weight=1
 
-# ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
+ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
 
-# #=================================================
-# # ENSURE DOWNWARD COMPATIBILITY
-# #=================================================
-# ynh_script_progression --message="Ensuring downward compatibility..." --time --weight=1
+#=================================================
+# ENSURE DOWNWARD COMPATIBILITY
+#=================================================
+ynh_script_progression --message="Ensuring downward compatibility..." --time --weight=1
 
-# #
-# # N.B. : the followings setting migrations snippets are provided as *EXAMPLES*
-# # of what you may want to do in some cases (e.g. a setting was not defined on
-# # some legacy installs and you therefore want to initiaze stuff during upgrade)
-# #
+#
+# N.B. : the followings setting migrations snippets are provided as *EXAMPLES*
+# of what you may want to do in some cases (e.g. a setting was not defined on
+# some legacy installs and you therefore want to initiaze stuff during upgrade)
+#
 
-# # If db_name doesn't exist, create it
-# #if [ -z "$db_name" ]; then
-# #	db_name=$(ynh_sanitize_dbid --db_name=$app)
-# #	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
-# #fi
+# If db_name doesn't exist, create it
+#if [ -z "$db_name" ]; then
+#	db_name=$(ynh_sanitize_dbid --db_name=$app)
+#	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
+#fi
 
-# # If final_path doesn't exist, create it
-# #if [ -z "$final_path" ]; then
-# #	final_path=/var/www/$app
-# #	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
-# #fi
-
-# ### If nobody installed your app before 4.1,
-# ### then you may safely remove these lines
-
-# # Cleaning legacy permissions
-# if ynh_legacy_permissions_exists; then
-# 	ynh_legacy_permissions_delete_all
-
-# 	ynh_app_setting_delete --app=$app --key=is_public
+# If final_path doesn't exist, create it
+# if [ -z "$final_path" ]; then
+# 	final_path=/var/www/$app
+# 	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 # fi
 
-# if ! ynh_permission_exists --permission="admin"; then
-# 	# Create the required permissions
-# 	ynh_permission_create --permission="admin" --url="/admin" --allowed=$admin
-# fi
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Making sure dedicated system user exists..." --time --weight=1
 
-# # Create a permission if needed
-# if ! ynh_permission_exists --permission="api"; then
-# 	ynh_permission_create --permission="api" --url="/api" --allowed="visitors" --show_tile="false" --protected="true"
-# fi
+# Create a dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
 
-# #=================================================
-# # CREATE DEDICATED USER
-# #=================================================
-# ynh_script_progression --message="Making sure dedicated system user exists..." --time --weight=1
+#=================================================
+# DOWNLOAD, CHECK AND UNPACK SOURCE
+#=================================================
 
-# # Create a dedicated user (if not existing)
-# ynh_system_user_create --username=$app --home_dir="$final_path"
+if [ "$upgrade_type" == "UPGRADE_APP" ]
+then
+	ynh_script_progression --message="Upgrading source files..." --time --weight=1
 
-# #=================================================
-# # DOWNLOAD, CHECK AND UNPACK SOURCE
-# #=================================================
+	# Download, check integrity, uncompress and patch the source from app.src
+    ynh_setup_source --dest_dir="$final_path" --keep=data/
+    # Download, check integrity, uncompress and patch the source from dist.src
+    ynh_setup_source --source_id="dist" --dest_dir="$final_path/dist"
 
-# if [ "$upgrade_type" == "UPGRADE_APP" ]
-# then
-# 	ynh_script_progression --message="Upgrading source files..." --time --weight=1
+fi
 
-# 	# Download, check integrity, uncompress and patch the source from app.src
-# 	ynh_setup_source --dest_dir="$final_path"
-# fi
+# FIXME: this should be managed by the core in the future
+# Here, as a packager, you may have to tweak the ownerhsip/permissions
+# such that the appropriate users (e.g. maybe www-data) can access
+# files in some cases.
+# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
+# this will be treated as a security issue.
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
 
-# # FIXME: this should be managed by the core in the future
-# # Here, as a packager, you may have to tweak the ownerhsip/permissions
-# # such that the appropriate users (e.g. maybe www-data) can access
-# # files in some cases.
-# # But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
-# # this will be treated as a security issue.
-# chmod 750 "$final_path"
-# chmod -R o-rwx "$final_path"
-# chown -R $app:www-data "$final_path"
+#=================================================
+# NGINX CONFIGURATION
+#=================================================
+ynh_script_progression --message="Upgrading NGINX web server configuration..." --time --weight=1
 
-# #=================================================
-# # NGINX CONFIGURATION
-# #=================================================
-# ynh_script_progression --message="Upgrading NGINX web server configuration..." --time --weight=1
+# Create a dedicated NGINX config
+ynh_add_nginx_config
 
-# # Create a dedicated NGINX config
-# ynh_add_nginx_config
+#=================================================
+# INSTALL NODEJS
+#=================================================
+ynh_script_progression --message="Upgrading NodeJS..." --time --weight=2
 
-# #=================================================
-# # UPGRADE DEPENDENCIES
-# #=================================================
-# ynh_script_progression --message="Upgrading dependencies..." --time --weight=1
+ynh_install_nodejs --nodejs_version=$nodejs_version
+
+#=================================================
+# NODEJS Version
+#=================================================
+
+ynh_use_nodejs
+
+#=================================================
+# UPGRADE DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Upgrading dependencies..." --time --weight=1
 
 # ynh_install_app_dependencies $pkg_dependencies
 
-# #=================================================
-# # PHP-FPM CONFIGURATION
-# #=================================================
-# ynh_script_progression --message="Upgrading PHP-FPM configuration..." --time --weight=1
+#=================================================
+# SPECIFIC UPGRADE
+#=================================================
 
-# # Create a dedicated PHP-FPM config
-# ynh_add_fpm_config
-
-# #=================================================
-# # SPECIFIC UPGRADE
-# #=================================================
-# # ...
-# #=================================================
+ynh_script_progression --message="Upgrading Uptime Kuma dependencies..." --time --weight=7
+cd $final_path && ynh_exec_warn_less $ynh_npm install
 
 # #=================================================
 # # UPDATE A CONFIG FILE
@@ -188,37 +174,37 @@
 # ### ynh_replace_string --match_string="match_string" --replace_string="replace_string" --target_file="$final_path/some_config_file"
 # ### ynh_store_file_checksum --file="$final_path/some_config_file"
 
-# #=================================================
-# # SETUP SYSTEMD
-# #=================================================
-# ynh_script_progression --message="Upgrading systemd configuration..." --time --weight=1
+#=================================================
+# SETUP SYSTEMD
+#=================================================
+ynh_script_progression --message="Upgrading systemd configuration..." --time --weight=1
 
-# # Create a dedicated systemd config
-# ynh_add_systemd_config
+# Create a dedicated systemd config
+ynh_add_systemd_config
 
-# #=================================================
-# # GENERIC FINALIZATION
-# #=================================================
-# # SETUP LOGROTATE
-# #=================================================
-# ynh_script_progression --message="Upgrading logrotate configuration..." --time --weight=1
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+# SETUP LOGROTATE
+#=================================================
+ynh_script_progression --message="Upgrading logrotate configuration..." --time --weight=1
 
-# # Use logrotate to manage app-specific logfile(s)
-# ynh_use_logrotate --non-append
+# Use logrotate to manage app-specific logfile(s)
+ynh_use_logrotate --non-append
 
-# #=================================================
-# # INTEGRATE SERVICE IN YUNOHOST
-# #=================================================
-# ynh_script_progression --message="Integrating service in YunoHost..." --time --weight=1
+#=================================================
+# INTEGRATE SERVICE IN YUNOHOST
+#=================================================
+ynh_script_progression --message="Integrating service in YunoHost..." --time --weight=1
 
-# yunohost service add $app --description="A short description of the app" --log="/var/log/$app/$app.log"
+yunohost service add $app --description="A short description of the app" --log="/var/log/$app/$app.log"
 
-# #=================================================
-# # START SYSTEMD SERVICE
-# #=================================================
-# ynh_script_progression --message="Starting a systemd service..." --time --weight=1
+#=================================================
+# START SYSTEMD SERVICE
+#=================================================
+ynh_script_progression --message="Starting a systemd service..." --time --weight=1
 
-# ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"
+ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"
 
 # #=================================================
 # # UPGRADE FAIL2BAN
@@ -228,15 +214,15 @@
 # # Create a dedicated Fail2Ban config
 # ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"
 
-# #=================================================
-# # RELOAD NGINX
-# #=================================================
-# ynh_script_progression --message="Reloading NGINX web server..." --time --weight=1
+#=================================================
+# RELOAD NGINX
+#=================================================
+ynh_script_progression --message="Reloading NGINX web server..." --time --weight=1
 
-# ynh_systemd_action --service_name=nginx --action=reload
+ynh_systemd_action --service_name=nginx --action=reload
 
-# #=================================================
-# # END OF SCRIPT
-# #=================================================
+#=================================================
+# END OF SCRIPT
+#=================================================
 
-# ynh_script_progression --message="Upgrade of $app completed" --time --last
+ynh_script_progression --message="Upgrade of $app completed" --time --last