diff --git a/README.md b/README.md
index 1dc8d7d..84227ef 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,10 @@
 # ZeroNet for YunoHost
-[![Integration level](https://dash.yunohost.org/integration/zeronet.svg)](https://dash.yunohost.org/appci/app/zeronet) ![](https://ci-apps.yunohost.org/ci/badges/zeronet.status.svg) ![](https://ci-apps.yunohost.org/ci/badges/zeronet.maintain.svg)  
+[![Integration level](https://dash.yunohost.org/integration/zeronet.svg)](https://dash.yunohost.org/appci/app/zeronet) ![](https://ci-apps.yunohost.org/ci/badges/zeronet.status.svg) ![](https://ci-apps.yunohost.org/ci/badges/zeronet.maintain.svg)
 [![Install ZeroNet with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=zeronet)
 
 *[Lire ce readme en français.](./README_fr.md)*
 
-> *This package allows you to install REPLACEBYYOURAPP quickly and simply on a YunoHost server.  
+> *This package allows you to install ZeroNet quickly and simply on a YunoHost server.
 If you don't have YunoHost, please consult [the guide](https://yunohost.org/#/install) to learn how to install it.*
 
 ## Overview
@@ -55,7 +55,7 @@ Can the app be used by multiple users?
 
 * Other info you would like to add about this app.
 
-**More info on the documentation page:**  
+**More info on the documentation page:**
 https://yunohost.org/packaging_apps
 
 
diff --git a/check_process b/check_process
index 9f2a7ae..d966a49 100644
--- a/check_process
+++ b/check_process
@@ -13,14 +13,14 @@
 		pkg_linter=1
 		setup_sub_dir=0
 #   setup_sub_dir=0 test disabled because app is always installed on /
-	  	setup_root=1 
+	  	setup_root=1
 		setup_nourl=0
 	  	setup_private=0
 #   setup_private=0 test disabled because app is always installed as private
 		setup_public=0
 		upgrade=1
   	        backup_restore=1
-		multi_instance=0 
+		multi_instance=0
 #		multi_instance=1 test disabled because it requires installation on sub-path which is not available. successfully conducted test manually
 		wrong_user=1
 		wrong_path=0
@@ -33,8 +33,8 @@
 	Level 1=auto
 	Level 2=auto
 	Level 3=auto
-	Level 4=na 
-# level 4: the app does not directly use Yunohost user data	
+	Level 4=na
+# level 4: the app does not directly use Yunohost user data
   	Level 5=auto
 	Level 6=auto
 	Level 7=auto
diff --git a/conf/app.src b/conf/app.src
index aa97514..0117e6c 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,3 +1,7 @@
 SOURCE_URL=https://github.com/HelloZeroNet/ZeroNet/archive/v0.7.1.tar.gz
 SOURCE_SUM=78a27e1687d8e3699a854b77b516c95b30a8ba667f7ebbef0aabf7ec6ec7272d
-SOURCE_VERSION=0.7.1
+SOURCE_SUM_PRG=sha256sum
+SOURCE_FORMAT=tar.gz
+SOURCE_IN_SUBDIR=true
+SOURCE_FILENAME=0.7.1
+SOURCE_EXTRACT=true
diff --git a/conf/nginx.conf b/conf/nginx.conf
new file mode 100644
index 0000000..ba502fb
--- /dev/null
+++ b/conf/nginx.conf
@@ -0,0 +1,9 @@
+
+ location / {
+
+  proxy_pass http://127.0.0.1:__PORT__;
+  proxy_http_version 1.1;
+  proxy_set_header Upgrade $http_upgrade;
+  proxy_set_header Connection "upgrade";
+  proxy_set_header Host $host;
+ }
\ No newline at end of file
diff --git a/conf/nginx.conf.template b/conf/nginx.conf.template
deleted file mode 100644
index c8fb620..0000000
--- a/conf/nginx.conf.template
+++ /dev/null
@@ -1,14 +0,0 @@
-location YNH_WWW_PATH {
-
-  proxy_pass http://127.0.0.1:YNH_LOCAL_PORT;
-  proxy_http_version 1.1;
-  proxy_set_header Upgrade $http_upgrade;
-  proxy_set_header Connection "upgrade";
-  proxy_set_header Host $host;
-  proxy_set_header X-Real-IP $remote_addr;
-  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-  proxy_set_header Accept 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8';
-
-  # Include SSOWAT user panel.
-  include conf.d/yunohost_panel.conf.inc;
-}
diff --git a/conf/systemd.service b/conf/systemd.service
new file mode 100644
index 0000000..3cc5fc5
--- /dev/null
+++ b/conf/systemd.service
@@ -0,0 +1,14 @@
+[Unit]
+Description=__APP__ service
+After=network.target
+
+[Service]
+User=noreply
+ExecStart=/usr/bin/python3 __FINALPATH__/zeronet.py --ui_port __PORT__ --ui_host __DOMAIN__ --fileserver_port __FS_PORT__ --data_dir __DATADIR__/data --log_dir __DATADIR__/log
+WorkingDirectory=/var/www/ZeroNet-py3
+ExecReload=/bin/kill -HUP $MAINPID
+KillMode=process
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target
diff --git a/conf/systemd.service.template b/conf/systemd.service.template
deleted file mode 100644
index 4e6f674..0000000
--- a/conf/systemd.service.template
+++ /dev/null
@@ -1,14 +0,0 @@
-[Unit]
-Description=ZeroNet for __USER__
-After=network.target
-
-[Service]
-User=__USER__
-ExecStart=/usr/bin/python2 ./zeronet.py --ui_port __UI_PORT__ --ui_host __UI_HOST__ --fileserver_port __FS_PORT__ --data_dir __DATA_DIR__ --log_dir __LOG_DIR__ 
-WorkingDirectory=__WORKING_DIRECTORY__
-ExecReload=/bin/kill -HUP $MAINPID
-KillMode=process
-Restart=on-failure
-
-[Install]
-WantedBy=multi-user.target
diff --git a/scripts/_common.sh b/scripts/_common.sh
new file mode 100644
index 0000000..b7bf9c2
--- /dev/null
+++ b/scripts/_common.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+#=================================================
+# COMMON VARIABLES
+#=================================================
+
+# dependencies used by the app
+pkg_dependencies="python-msgpack python-gevent"
+
+#=================================================
+# PERSONAL HELPERS
+#=================================================
+
+#=================================================
+# EXPERIMENTAL HELPERS
+#=================================================
+
+#=================================================
+# FUTURE OFFICIAL HELPERS
+#=================================================
diff --git a/scripts/backup b/scripts/backup
index 348f844..62c9f8b 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -1,24 +1,68 @@
-#!/usr/bin/env bash
+#!/bin/bash
 
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+#Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
+source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
-main() {
-  ynh_abort_if_errors
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
 
-  local app=$YNH_APP_INSTANCE_NAME
-  local backup_dir=$YNH_APP_BACKUP_DIR
-  local deploy_path=$( ynh_app_setting_get $app deploy_path )
-  local nginx_config_file=$( ynh_app_setting_get $app nginx_config_file )
-  local systemd_service_name=$( ynh_app_setting_get $app systemd_service_name )
-  local systemd_service_file=$( ynh_app_setting_get $app systemd_service_file )
-  local user_zeronet_dir=$( ynh_app_setting_get $app user_zeronet_dir )
-
-  ynh_backup $deploy_path "sources"
-  
-  mkdir --parent ./conf
-  ynh_backup $nginx_config_file "conf/nginx.conf"
-  ynh_backup $systemd_service_file "conf/${systemd_service_name}"
-  ynh_backup $user_zeronet_dir "conf/.zeronet"
+ynh_clean_setup () {
+	### Remove this function if there's nothing to clean before calling the remove script.
+	true
 }
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
 
-main
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_print_info --message="Loading installation settings..."
+
+app=$YNH_APP_INSTANCE_NAME
+
+final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+domain=$(ynh_app_setting_get --app=$app --key=domain)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
+
+#=================================================
+# DECLARE DATA AND CONF FILES TO BACKUP
+#=================================================
+ynh_print_info --message="Declaring files to be backed up..."
+
+### N.B. : the following 'ynh_backup' calls are only a *declaration* of what needs
+### to be backuped and not an actual copy of any file. The actual backup that
+### creates and fill the archive with the files happens in the core after this
+### script is called. Hence ynh_backups calls takes basically 0 seconds to run.
+
+#=================================================
+# BACKUP THE APP MAIN DIR
+#=================================================
+
+ynh_backup --src_path="$final_path"
+ynh_backup --src_path="$datadir"
+
+#=================================================
+# BACKUP THE NGINX CONFIGURATION
+#=================================================
+
+ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
+
+#=================================================
+# BACKUP SYSTEMD
+#=================================================
+
+ynh_backup --src_path="/etc/systemd/system/$app.service"
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info --message="Backup script completed for $app. (YunoHost will then actually copy those files to the archive)."
\ No newline at end of file
diff --git a/scripts/change_url b/scripts/change_url
new file mode 100644
index 0000000..d0ef915
--- /dev/null
+++ b/scripts/change_url
@@ -0,0 +1,143 @@
+#!/bin/bash
+
+#=================================================
+# GENERIC STARTING
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source _common.sh
+source /usr/share/yunohost/helpers
+
+#=================================================
+# RETRIEVE ARGUMENTS
+#=================================================
+
+old_domain=$YNH_APP_OLD_DOMAIN
+old_path=$YNH_APP_OLD_PATH
+
+new_domain=$YNH_APP_NEW_DOMAIN
+new_path=$YNH_APP_NEW_PATH
+
+app=$YNH_APP_INSTANCE_NAME
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_script_progression --message="Loading installation settings..."
+
+# Needed for helper "ynh_add_nginx_config"
+final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+port=$(ynh_app_setting_get --app=$app --key=port)
+fs_port=$(ynh_app_setting_get --app=$app --key=fs_port)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
+
+# Add settings here as needed by your application
+#db_name=$(ynh_app_setting_get --app=$app --key=db_name)
+#db_user=$db_name
+#db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
+
+#=================================================
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backing up the app before changing its url (may take a while)..."
+
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+	# Remove the new domain config file, the remove script won't do it as it doesn't know yet its location.
+	ynh_secure_remove --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+
+	# restore it if the upgrade fails
+	ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
+#=================================================
+# CHECK WHICH PARTS SHOULD BE CHANGED
+#=================================================
+
+change_domain=0
+if [ "$old_domain" != "$new_domain" ]
+then
+	change_domain=1
+fi
+
+change_path=0
+if [ "$old_path" != "$new_path" ]
+then
+	change_path=1
+fi
+
+#=================================================
+# STANDARD MODIFICATIONS
+#=================================================
+# STOP SYSTEMD SERVICE
+#=================================================
+ynh_script_progression --message="Stopping a systemd service..."
+
+ynh_systemd_action --service_name=$app --action="stop" --log_path="$datadir/log/debug-last.log"
+
+#=================================================
+# MODIFY URL IN NGINX CONF
+#=================================================
+ynh_script_progression --message="Updating nginx web server configuration..."
+
+nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
+
+# Change the path in the nginx config file
+if [ $change_path -eq 1 ]
+then
+	# Make a backup of the original nginx config file if modified
+	ynh_backup_if_checksum_is_different --file="$nginx_conf_path"
+	# Set global variables for nginx helper
+	domain="$old_domain"
+	path_url="$new_path"
+	# Create a dedicated nginx config
+	ynh_add_nginx_config
+fi
+
+# Change the domain for nginx
+if [ $change_domain -eq 1 ]
+then
+	# Delete file checksum for the old conf file location
+	ynh_delete_file_checksum --file="$nginx_conf_path"
+	mv $nginx_conf_path /etc/nginx/conf.d/$new_domain.d/$app.conf
+	# Store file checksum for the new config file location
+	ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+fi
+
+#=================================================
+# SPECIFIC MODIFICATIONS
+#=================================================
+# ...
+#=================================================
+
+#=================================================
+# GENERIC FINALISATION
+#=================================================
+# INTEGRATE SERVICE IN YUNOHOST
+#=================================================
+ynh_script_progression --message="Integrating service in YunoHost..."
+
+yunohost service add $app --description "$app service" --others_var="$fs_port $datadir" --log "$datadir/log/debug-last.log" --needs_exposed_ports "$fs_port"
+
+#=================================================
+# START SYSTEMD SERVICE
+#=================================================
+
+ynh_systemd_action --service_name=$app --action="start" --log_path="$datadir/log/debug-last.log"
+
+#=================================================
+# RELOAD NGINX
+#=================================================
+ynh_script_progression --message="Reloading nginx web server..."
+
+ynh_systemd_action --service_name=nginx --action=reload
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Change of URL completed for $app" --time --last
diff --git a/scripts/functions.sh b/scripts/functions.sh
deleted file mode 100644
index f975fa2..0000000
--- a/scripts/functions.sh
+++ /dev/null
@@ -1,65 +0,0 @@
-#!/usr/bin/env bash
-
-set -eu
-
-install_dependencies() {
-  apt-get install --quiet --yes python-msgpack python-gevent
-}
-
-app_config_get() { 
-  local app_config=$1
-  local attribute=$2
-  
-  cat ${app_config} \
-    | grep ${attribute} \
-    | cut --delimiter== --fields=2
-}
-
-make_deploy_path() {
-  local app=$1
-  local source_version=$2
-
-  echo "/var/www/${app}-v${source_version}" # e.g. /var/www/zeronet__2-0.5.3
-}
-
-download_file() {
-  local url=$1
-  local output_document=$2
-  wget --no-verbose --output-document=${output_document} ${url}
-}
-
-check_file_integrity() {
-  local file=$1
-  local expected_checksum=$2
-
-  echo "${expected_checksum} ${file}" | sha256sum --check --status \
-    || ynh_die "Corrupt source!"
-}
-
-extract_archive() {
-  local src_file=$1
-  local deploy_path=$2
-
-  mkdir --parents ${deploy_path} 
-  tar --extract --file=${src_file} --directory=${deploy_path} --overwrite --strip-components 1
-}
-
-obtain_and_deploy_source() {
-  local app_config=$1
-  local deploy_path=$2
-  local symlink_to_deploy_path=$3
-  local user=$4
-  local src_url=$(app_config_get $app_config "SOURCE_URL")
-  local src_checksum=$(app_config_get $app_config "SOURCE_SUM")
-  local src_file="/tmp/source.tar.gz"
-
-  download_file $src_url $src_file
-  check_file_integrity $src_file $src_checksum
-  extract_archive $src_file $deploy_path
-  
-  rm -f $symlink_to_deploy_path
-  ln --symbolic --force $deploy_path $symlink_to_deploy_path 
-
-  chown $user: -LR $symlink_to_deploy_path
-  chown $user: -h $symlink_to_deploy_path
-}
diff --git a/scripts/install b/scripts/install
index 8ad4ff9..6f65378 100755
--- a/scripts/install
+++ b/scripts/install
@@ -1,155 +1,246 @@
-#!/usr/bin/env bash
+#!/bin/bash
 
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source _common.sh
 source /usr/share/yunohost/helpers
-source functions.sh
 
-nginx_config_file() {
-  local app=$1
-  local domain=$2
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
 
-  mkdir --parents "/etc/nginx/conf.d/${domain}.d"
-
-  echo "/etc/nginx/conf.d/${domain}.d/${app}.conf"
+ynh_clean_setup () {
+	### Remove this function if there's nothing to clean before calling the remove script.
+	true
 }
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
 
-update_nginx_configuration() {
-  local app=$1
-  local config_template=$2
-  local config_file=$3
-  local path=$4
-  local ui_port=$5
+#=================================================
+# RETRIEVE ARGUMENTS FROM THE MANIFEST
+#=================================================
 
-  cp $config_template $config_file
+domain=$YNH_APP_ARG_DOMAIN
+path_url="/"
+admin=$YNH_APP_ARG_ADMIN
+datadir="/home/yunohost.app/${app}"
 
-  sed --in-place "s@YNH_WWW_PATH@${path}@g" ${config_file}
-  sed --in-place "s@YNH_LOCAL_PORT@${ui_port}/@g" ${config_file}
+### If it's a multi-instance app, meaning it can be installed several times independently
+### The id of the app as stated in the manifest is available as $YNH_APP_ID
+### The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2", ...)
+### The app instance name is available as $YNH_APP_INSTANCE_NAME
+###    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
+###    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
+###    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
+### The app instance name is probably what interests you most, since this is
+### guaranteed to be unique. This is a good unique identifier to define installation path,
+### db names, ...
+app=$YNH_APP_INSTANCE_NAME
 
-  service nginx reload
-}
+#=================================================
+# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
+#=================================================
+### About --weight and --time
+### ynh_script_progression will show to your final users the progression of each scripts.
+### In order to do that, --weight will represent the relative time of execution compared to the other steps in the script.
+### --time is a packager option, it will show you the execution time since the previous call.
+### This option should be removed before releasing your app.
+### Use the execution time, given by --time, to estimate the weight of a step.
+### A common way to do it is to set a weight equal to the execution time in second +1.
+### The execution time is given for the duration since the previous call. So the weight should be applied to this previous call.
+ynh_script_progression --message="Validating installation parameters..."
 
-systemd_service_name() {
-  local app=$1
-  local user=$2
+### If the app uses nginx as web server (written in HTML/PHP in most cases), the final path should be "/var/www/$app".
+### If the app provides an internal web server (or uses another application server such as uwsgi), the final path should be "/opt/yunohost/$app"
+final_path=/var/www/$app
+test ! -e "$final_path" || ynh_die --message="This path already contains a folder"
 
-  echo "ynh-${app}-${user}.service"
-}
+# Register (book) web path
+ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
 
-#
-# Creates service which runs zeronet on unique
-# UserInterace and FileServer port for the user
-# ZeroNet data is stored in the users home directory in ~/.zeronet
-#
-update_systemd_configuration() {
-  local app=$1
-  local service_template=$2
-  local service_name=$3
-  local service_file=$4
-  local user=$5
-  local ui_port=$6
-  local symlink_to_deploy_path=$7
-  local zeronet_dir=$8
-  local ui_host=$9
-  local fs_port=${10} # only works with bash
+#=================================================
+# STORE SETTINGS FROM MANIFEST
+#=================================================
+ynh_script_progression --message="Storing installation settings..."
 
-  # create zeronet user data location
-  local data_dir=$zeronet_dir/data
-  local log_dir=$zeronet_dir/log
+ynh_app_setting_set --app=$app --key=domain --value=$domain
+ynh_app_setting_set --app=$app --key=path --value=$path_url
+ynh_app_setting_set --app=$app --key=admin --value=$admin
+ynh_app_setting_set --app=$app --key=datadir --value=$datadir
 
-  mkdir -p $data_dir
-  mkdir -p $log_dir
-  chown -R $user: $zeronet_dir
 
-  # configure systemd service
-  cp $service_template $service_file
+#=================================================
+# STANDARD MODIFICATIONS
+#=================================================
+# FIND AND OPEN A PORT
+#=================================================
+ynh_script_progression --message="Configuring firewall..."
 
-  sed --in-place "s@__USER__@$user@g" $service_file
-  sed --in-place "s@__UI_PORT__@$ui_port@g" $service_file
-  sed --in-place "s@__FS_PORT__@$fs_port@g" $service_file
-  sed --in-place "s@__UI_HOST__@$ui_host@g" $service_file
-  sed --in-place "s@__APP_NAME__@$app@g" $service_file
-  sed --in-place "s@__WORKING_DIRECTORY__@$symlink_to_deploy_path@g" $service_file
-  sed --in-place "s@__DATA_DIR__@$data_dir@g" $service_file
-  sed --in-place "s@__LOG_DIR__@$log_dir@g" $service_file
+### Use these lines if you have to open a port for the application
+### `ynh_find_port` will find the first available port starting from the given port.
+### If you're not using these lines:
+###		- Remove the section "CLOSE A PORT" in the remove script
 
-  systemctl daemon-reload
-  systemctl enable $service_name
-  systemctl start $service_name
-}
+# Find an available port
+port=$(ynh_find_port --port=43110)
+fs_port=$(ynh_find_port --port=15441)
+ynh_app_setting_set --app=$app --key=port --value=$port
+ynh_app_setting_set --app=$app --key=fs_port --value=$fs_port
 
-# Source: https://github.com/YunoHost/yunohost/blob/901e3df9b604f542f2c460aad05bcc8efc9fd054/data/helpers.d/network
-#
-# Find a free port and return it
-#
-# example: port=$(ynh_find_port 8080)
-#
-# usage: ynh_find_port begin_port
-# | arg: begin_port - port to start to search
-ynh_find_port () {
-  port=$1
+# Optional: Expose this port publicly
+# (N.B. : you only need to do this if the app actually needs to expose the port publicly.
+# If you do this and the app doesn't actually need you are CREATING SECURITY HOLES IN THE SERVER !)
 
-  while netcat -z 127.0.0.1 $port # Check if the port is free
-  do
-    port=$((port+1)) # Else, pass to next port
-  done
-  echo $port
-}
+# Open the port
+ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $fs_port
 
-main() {
-  ynh_abort_if_errors
+#=================================================
+# INSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Installing dependencies..."
+### `ynh_install_app_dependencies` allows you to add any "apt" dependencies to the package.
+### Those deb packages will be installed as dependencies of this package.
+### If you're not using this helper:
+###		- Remove the section "REMOVE DEPENDENCIES" in the remove script
+###		- Remove the variable "pkg_dependencies" in _common.sh
+###		- As well as the section "REINSTALL DEPENDENCIES" in the restore script
+###		- And the section "UPGRADE DEPENDENCIES" in the upgrade script
 
-  local app=$YNH_APP_INSTANCE_NAME
-  local number=$YNH_APP_INSTANCE_NUMBER
-  local domain=$YNH_APP_ARG_DOMAIN
-  local user=$YNH_APP_ARG_ADMIN
+ynh_install_app_dependencies $pkg_dependencies
 
-  local ui_port=$( ynh_find_port 43110 ) # the port zeronet ui listens on
-  local fs_port=$( ynh_find_port 15441 ) # the port zeronet fileserver listens on
+#=================================================
+# DOWNLOAD, CHECK AND UNPACK SOURCE
+#=================================================
+ynh_script_progression --message="Setting up source files..."
 
-  local path="/"
-  local is_public=0 # by defaut access to zeronet is private
-  local nginx_config_template=../conf/nginx.conf.template
-  local systemd_service_template=../conf/systemd.service.template
-  local app_config=../conf/app.src
-  local systemd_service_dir=/etc/systemd/system
+### `ynh_setup_source` is used to install an app from a zip or tar.gz file,
+### downloaded from an upstream source, like a git repository.
+### `ynh_setup_source` use the file conf/app.src
 
-  local url=$domain$path
-  local source_version=$( app_config_get $app_config "SOURCE_VERSION" )
-  local systemd_service_name=$( systemd_service_name $app $user )
-  local systemd_service_file="${systemd_service_dir}/${systemd_service_name}"
-  local nginx_config_file=$( nginx_config_file $app $domain )
-  local user_zeronet_dir="/home/${user}/.zeronet"
-  local deploy_path=$( make_deploy_path $app $source_version )
-  local symlink_to_deploy_path="/var/www/${app}"
+ynh_app_setting_set --app=$app --key=final_path --value=$final_path
+# Download, check integrity, uncompress and patch the source from app.src
+ynh_setup_source --dest_dir="$final_path"
 
-  ynh_webpath_available $domain $path
-  ynh_webpath_register $app $domain $path
+#=================================================
+# NGINX CONFIGURATION
+#=================================================
+ynh_script_progression --message="Configuring nginx web server..."
 
-  ynh_user_exists $user
+### `ynh_add_nginx_config` will use the file conf/nginx.conf
 
-  ynh_app_setting_set $app is_public $is_public
-  ynh_app_setting_set $app domain $domain
-  ynh_app_setting_set $app path $path
-  ynh_app_setting_set $app url $url
-  ynh_app_setting_set $app admin $user
-  ynh_app_setting_set $app allowed_users $user
-  ynh_app_setting_set $app deploy_path $deploy_path
-  ynh_app_setting_set $app symlink_to_deploy_path $symlink_to_deploy_path
-  ynh_app_setting_set $app ui_port $ui_port
-  ynh_app_setting_set $app fs_port $fs_port
-  ynh_app_setting_set $app installed_version $source_version
-  ynh_app_setting_set $app nginx_config_file $nginx_config_file
-  ynh_app_setting_set $app user $user
-  ynh_app_setting_set $app user_zeronet_dir $user_zeronet_dir
-  ynh_app_setting_set $app systemd_service_name $systemd_service_name
-  ynh_app_setting_set $app systemd_service_file $systemd_service_file
+# Create a dedicated nginx config
+ynh_add_nginx_config
 
-  install_dependencies
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Configuring system user..."
 
-  obtain_and_deploy_source $app_config $deploy_path $symlink_to_deploy_path $user
+# Create a system user
+ynh_system_user_create --username=$app
 
-  update_nginx_configuration $app $nginx_config_template $nginx_config_file $path $ui_port
-  update_systemd_configuration $app $systemd_service_template $systemd_service_name $systemd_service_file \
-    $user $ui_port $symlink_to_deploy_path $user_zeronet_dir $domain $fs_port
-}
+#=================================================
+# SETUP SYSTEMD
+#=================================================
+ynh_script_progression --message="Configuring a systemd service..."
+### `ynh_systemd_config` is used to configure a systemd script for an app.
+### It can be used for apps that use sysvinit (with adaptation) or systemd.
+### Have a look at the app to be sure this app needs a systemd script.
+### `ynh_systemd_config` will use the file conf/systemd.service
+### If you're not using these lines:
+###		- You can remove those files in conf/.
+###		- Remove the section "BACKUP SYSTEMD" in the backup script
+###		- Remove also the section "STOP AND REMOVE SERVICE" in the remove script
+###		- As well as the section "RESTORE SYSTEMD" in the restore script
+###		- And the section "SETUP SYSTEMD" in the upgrade script
 
-main
+# Create a dedicated systemd config
+ynh_add_systemd_config
+
+#=================================================
+# SETUP APPLICATION WITH CURL
+#=================================================
+
+### Use these lines only if the app installation needs to be finalized through
+### web forms. We generally don't want to ask the final user,
+### so we're going to use curl to automatically fill the fields and submit the
+### forms.
+
+# Set right permissions for curl install
+mkdir -p $datadir/data
+mkdir -p $datadir/log
+chown -R $app: $final_path
+chown -R $app: $datadir
+
+
+#=================================================
+# INTEGRATE SERVICE IN YUNOHOST
+#=================================================
+ynh_script_progression --message="Integrating service in YunoHost..."
+
+### `yunohost service add` integrates a service in YunoHost. It then gets
+### displayed in the admin interface and through the others `yunohost service` commands.
+### (N.B. : this line only makes sense if the app adds a service to the system!)
+### If you're not using these lines:
+###		- You can remove these files in conf/.
+###		- Remove the section "REMOVE SERVICE INTEGRATION IN YUNOHOST" in the remove script
+###		- As well as the section "INTEGRATE SERVICE IN YUNOHOST" in the restore script
+###		- And the section "INTEGRATE SERVICE IN YUNOHOST" in the upgrade script
+
+yunohost service add $app --description "$app service" --others_var="$fs_port $datadir" --log "$datadir/log/debug-last.log" --needs_exposed_ports "$fs_port"
+
+### Additional options starting with 3.8:
+###
+### --needs_exposed_ports "$port" a list of ports that needs to be publicly exposed
+###                               which will then be checked by YunoHost's diagnosis system
+###                               (N.B. DO NOT USE THIS is the port is only internal !!!)
+###
+### --test_status "some command"  a custom command to check the status of the service
+###                               (only relevant if 'systemctl status' doesn't do a good job)
+###
+### --test_conf "some command"    some command similar to "nginx -t" that validates the conf of the service
+###
+### Re-calling 'yunohost service add' during the upgrade script is the right way
+### to proceed if you later realize that you need to enable some flags that
+### weren't enabled on old installs (be careful it'll override the existing
+### service though so you should re-provide all relevant flags when doing so)
+###
+
+#=================================================
+# START SYSTEMD SERVICE
+#=================================================
+ynh_script_progression --message="Starting a systemd service..."
+### `ynh_systemd_action` is used to start a systemd service for an app.
+### Only needed if you have configure a systemd service
+### If you're not using these lines:
+###		- Remove the section "STOP SYSTEMD SERVICE" and "START SYSTEMD SERVICE" in the backup script
+###		- As well as the section "START SYSTEMD SERVICE" in the restore script
+###		- As well as the section"STOP SYSTEMD SERVICE" and "START SYSTEMD SERVICE" in the upgrade script
+###		- And the section "STOP SYSTEMD SERVICE" and "START SYSTEMD SERVICE" in the change_url script
+
+# Start a systemd service
+ynh_systemd_action --service_name=$app --action="start" --log_path="$datadir/log/debug-last.log"
+
+#=================================================
+# SETUP SSOWAT
+#=================================================
+ynh_script_progression --message="Configuring SSOwat..."
+
+# Restrict access to admin only
+yunohost app addaccess --users=$admin $app
+
+#=================================================
+# RELOAD NGINX
+#=================================================
+ynh_script_progression --message="Reloading nginx web server..."
+ynh_systemd_action --service_name=nginx --action=reload
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Installation of $app completed"
diff --git a/scripts/remove b/scripts/remove
index fb79174..6fe8ad5 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -1,57 +1,95 @@
-#!/usr/bin/env bash 
-set -u
+#!/bin/bash
 
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source _common.sh
 source /usr/share/yunohost/helpers
 
-remove_systemd_service_() {
-  local service_name=$1
-  local service_file=$2
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_script_progression --message="Loading installation settings..."
 
-  systemctl stop $service_name
-  systemctl disable $service_name
-  rm $service_file
-  systemctl daemon-reload
-  systemctl reset-failed
-}
+app=$YNH_APP_INSTANCE_NAME
 
-remove_nginx_config() {
-  local nginx_config_file=$1
+domain=$(ynh_app_setting_get --app=$app --key=domain)
+port=$(ynh_app_setting_get --app=$app --key=port)
+fs_port=$(ynh_app_setting_get --app=$app --key=fs_port)
+final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
-  ynh_secure_remove $nginx_config_file
-  service nginx reload
-}
+#=================================================
+# STANDARD REMOVE
+#=================================================
+# REMOVE SERVICE INTEGRATION IN YUNOHOST
+#=================================================
 
-remove_user_data() {
-  local user_zeronet_dir=$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
+then
+	ynh_script_progression --message="Removing $app service integration..."
+	yunohost service remove $app
+fi
 
-  ynh_secure_remove $user_zeronet_dir
-}
+#=================================================
+# STOP AND REMOVE SERVICE
+#=================================================
+ynh_script_progression --message="Stopping and removing the systemd service..."
 
-remove_zeronet() {
-  local deploy_path=$1
-  local symlink_to_deploy_path=$2
+# Remove the dedicated systemd config
+ynh_remove_systemd_config
 
-  ynh_secure_remove $deploy_path
-  ynh_secure_remove $symlink_to_deploy_path
-}
+#=================================================
+# REMOVE DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Removing dependencies..."
 
-main() {
-  local app=${YNH_APP_INSTANCE_NAME}
-  local domain=$( ynh_app_setting_get $app domain )
-  local user=$( ynh_app_setting_get $app admin )
-  local nginx_config_file=$( ynh_app_setting_get $app nginx_config_file )
-  local systemd_service_name=$( ynh_app_setting_get $app systemd_service_name )
-  local systemd_service_file=$( ynh_app_setting_get $app systemd_service_file )
-  local deploy_path=$( ynh_app_setting_get $app deploy_path )
-  local symlink_to_deploy_path=$( ynh_app_setting_get $app symlink_to_deploy_path )
-  local user_zeronet_dir=$( ynh_app_setting_get $app user_zeronet_dir )
+# Remove metapackage and its dependencies
+ynh_remove_app_dependencies
 
-  if [ -n $domain ]; then
-    remove_nginx_config $nginx_config_file
-    remove_user_data $user_zeronet_dir
-    remove_systemd_service_ $systemd_service_name $systemd_service_file
-    remove_zeronet $deploy_path $symlink_to_deploy_path
-  fi
-}
+#=================================================
+# REMOVE APP MAIN DIR
+#=================================================
+ynh_script_progression --message="Removing app main directory..."
 
-main
+# Remove the app directory securely
+ynh_secure_remove --file="$final_path"
+ynh_secure_remove --file="$datadir"
+
+#=================================================
+# REMOVE NGINX CONFIGURATION
+#=================================================
+ynh_script_progression --message="Removing nginx web server configuration..."
+
+# Remove the dedicated nginx config
+ynh_remove_nginx_config
+
+#=================================================
+# CLOSE A PORT
+#=================================================
+
+if yunohost firewall list | grep -q "\- $fs_port$"
+then
+	ynh_script_progression --message="Closing port $port..."
+	ynh_exec_warn_less yunohost firewall disallow TCP $fs_port
+fi
+
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+# REMOVE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Removing the dedicated system user..."
+
+# Delete a system user
+ynh_system_user_delete --username=$app
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Removal of $app completed"
diff --git a/scripts/restore b/scripts/restore
index 314471d..d4afe49 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -1,61 +1,134 @@
-#!/usr/bin/env bash
+#!/bin/bash
 
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+#Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
+source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
-# TODO: enable with fix of https://github.com/YunoHost/yunohost/pull/246
-# source .hfunctions
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
 
-# TODO: remove with fix of https://github.com/YunoHost/yunohost/pull/246
-install_dependencies() {
-  apt-get install --quiet --yes python-msgpack python-gevent
+ynh_clean_setup () {
+	#### Remove this function if there's nothing to clean before calling the remove script.
+	true
 }
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
 
-is_app_restorable() {
-  local -r domain=$1
-  local -r path=$2
-  local -r deploy_path=$3
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_script_progression --message="Loading installation settings..."
 
-  ynh_webpath_available $domain $path \
-	  || ynh_die "Path not available: ${domain}${path}"
+app=$YNH_APP_INSTANCE_NAME
 
-  test ! -d $deploy_path \
-	  || ynh_die "There is already a directory: $deploy_path"
-}
+domain=$(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=$app --key=final_path)
+port=$(ynh_app_setting_get --app=$app --key=port)
+fs_port=$(ynh_app_setting_get --app=$app --key=fs_port)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
-main() {
-  ynh_abort_if_errors
+#=================================================
+# CHECK IF THE APP CAN BE RESTORED
+#=================================================
+ynh_script_progression --message="Validating restoration parameters..."
 
-  local app=$YNH_APP_INSTANCE_NAME
-  local domain=$(ynh_app_setting_get $app domain)
-  local path=$(ynh_app_setting_get $app path)
-  local deploy_path=$(ynh_app_setting_get $app deploy_path)
-  local symlink_to_deploy_path=$(ynh_app_setting_get $app symlink_to_deploy_path)
-  local nginx_config_file=$( ynh_app_setting_get $app nginx_config_file )
-  local systemd_service_name=$( ynh_app_setting_get $app systemd_service_name )
-  local systemd_service_file=$( ynh_app_setting_get $app systemd_service_file )
-  local user=$( ynh_app_setting_get $app user )
-  local user_zeronet_dir=$( ynh_app_setting_get $app user_zeronet_dir )
+ynh_webpath_available --domain=$domain --path_url=$path_url \
+	|| ynh_die --message="Path not available: ${domain}${path_url}"
+test ! -d $final_path \
+	|| ynh_die --message="There is already a directory: $final_path "
 
-  local url=$(ynh_app_setting_get $app url)
+#=================================================
+# STANDARD RESTORATION STEPS
+#=================================================
+# RESTORE THE NGINX CONFIGURATION
+#=================================================
 
-  is_app_restorable $domain $path $deploy_path
+ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
-  install_dependencies
+#=================================================
+# RESTORE THE APP MAIN DIR
+#=================================================
+ynh_script_progression --message="Restoring the app main directory..."
 
-  cp -a "./sources" $deploy_path
-  ln --symbolic --force $deploy_path $symlink_to_deploy_path 
-  chown $user: -LR $symlink_to_deploy_path
-  chown $user: -h $symlink_to_deploy_path
+ynh_restore_file --origin_path="$final_path"
+ynh_restore_file --origin_path="$datadir"
 
-  ynh_secure_remove $user_zeronet_dir
-  cp -aR "./conf/.zeronet" $user_zeronet_dir
-  chown -R $user: $user_zeronet_dir
-  
-  cp -a "./conf/nginx.conf" $nginx_config_file
-  service nginx reload
-  
-  cp -a "./conf/${systemd_service_name}" $systemd_service_file
-  systemctl restart $systemd_service_name
-}
+#=================================================
+# RECREATE THE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Recreating the dedicated system user..."
 
-main
+# Create the dedicated user (if not existing)
+ynh_system_user_create --username=$app
+
+#=================================================
+# RESTORE USER RIGHTS
+#=================================================
+
+# Restore permissions on app files
+chown -R $app: $final_path
+chown -R $app: $datadir
+
+#=================================================
+# SPECIFIC RESTORATION
+#=================================================
+# REINSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Reinstalling dependencies..."
+
+# Define and install dependencies
+ynh_install_app_dependencies $pkg_dependencies
+
+#=================================================
+# RESTORE SYSTEMD
+#=================================================
+ynh_script_progression --message="Restoring the systemd configuration..."
+
+ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
+systemctl enable $app.service
+
+#=================================================
+# INTEGRATE SERVICE IN YUNOHOST
+#=================================================
+ynh_script_progression --message="Integrating service in YunoHost..."
+
+yunohost service add $app --description "$app service" --others_var="$fs_port $datadir" --log "$datadir/log/debug-last.log" --needs_exposed_ports "$fs_port"
+
+#=================================================
+# START SYSTEMD SERVICE
+#=================================================
+ynh_script_progression --message="Starting a systemd service..."
+
+ynh_systemd_action --service_name=$app --action="start" --log_path="$datadir/log/debug-last.log"
+
+#=================================================
+# SETUP SSOWAT
+#=================================================
+ynh_script_progression --message="Upgrading SSOwat configuration..."
+
+# Restrict access to admin only
+yunohost app addaccess --users=$admin $app
+
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+# RELOAD NGINX
+#=================================================
+ynh_script_progression --message="Reloading nginx web server and php-fpm..."
+
+ynh_systemd_action --service_name=nginx --action=reload
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Restoration completed for $app"
\ No newline at end of file
diff --git a/scripts/upgrade b/scripts/upgrade
index 3b09cd2..54891e5 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -1,33 +1,172 @@
-#!/usr/bin/env bash
+#!/bin/bash
 
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source _common.sh
 source /usr/share/yunohost/helpers
-source functions.sh
 
-main() {
-  ynh_abort_if_errors
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_script_progression --message="Loading installation settings..."
 
-  local app=${YNH_APP_INSTANCE_NAME}
-  local user=$( ynh_app_setting_get $app user )
-  local deploy_path=$( ynh_app_setting_get $app deploy_path )
-  local symlink_to_deploy_path=$( ynh_app_setting_get $app symlink_to_deploy_path )
-  local installed_version=$( ynh_app_setting_get $app installed_version )
-  local systemd_service_name=$( ynh_app_setting_get $app systemd_service_name )
-  local app_config=../conf/app.src 
-  local source_version=$(app_config_get $app_config "SOURCE_VERSION")
+app=$YNH_APP_INSTANCE_NAME
 
-  local old_deploy_path=$deploy_path
-  local new_deploy_path=$( make_deploy_path $app $source_version )
+domain=$(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=$app --key=final_path)
+port=$(ynh_app_setting_get --app=$app --key=port)
+fs_port=$(ynh_app_setting_get --app=$app --key=fs_port)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
-  obtain_and_deploy_source $app_config $new_deploy_path $symlink_to_deploy_path $user
+#=================================================
+# CHECK VERSION
+#=================================================
 
-  systemctl restart $systemd_service_name
+### 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)
 
-  ynh_app_setting_set $app installed_version $source_version
-  ynh_app_setting_set $app deploy_path $new_deploy_path
+#=================================================
+# ENSURE DOWNWARD COMPATIBILITY
+#=================================================
+ynh_script_progression --message="Ensuring downward compatibility..."
 
-  if [ $new_deploy_path != $old_deploy_path ]; then
-    ynh_secure_remove $old_deploy_path
-  fi
+# If final_path doesn't exist, create it
+if [ -z "$final_path" ]; then
+	final_path=/var/www/$app
+	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
+fi
+
+#=================================================
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backing up the app before upgrading (may take a while)..."
+
+# 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
 
-main
+#=================================================
+# CHECK THE PATH
+#=================================================
+
+# Normalize the URL path syntax
+# N.B. : this is for app installations before YunoHost 2.7
+# where this value might be something like /foo/ or foo/
+# instead of /foo ....
+# If nobody installed your app before 2.7, then you may
+# safely remove this line
+path_url=$(ynh_normalize_url_path --path_url=$path_url)
+
+#=================================================
+# STANDARD UPGRADE STEPS
+#=================================================
+# STOP SYSTEMD SERVICE
+#=================================================
+ynh_script_progression --message="Stopping a systemd service..."
+
+ynh_systemd_action --service_name=$app --action="stop" --log_path="$datadir/log/debug-last.log"
+
+#=================================================
+# DOWNLOAD, CHECK AND UNPACK SOURCE
+#=================================================
+
+if [ "$upgrade_type" == "UPGRADE_APP" ]
+then
+	ynh_script_progression --message="Upgrading source files..."
+
+	# Download, check integrity, uncompress and patch the source from app.src
+  ynh_secure_remove --file="$final_path"
+	ynh_setup_source --dest_dir="$final_path"
+fi
+
+#=================================================
+# NGINX CONFIGURATION
+#=================================================
+ynh_script_progression --message="Upgrading nginx web server configuration..."
+
+# Create a dedicated nginx config
+ynh_add_nginx_config
+
+#=================================================
+# UPGRADE DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Upgrading dependencies..."
+
+ynh_install_app_dependencies $pkg_dependencies
+
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Making sure dedicated system user exists..."
+
+# Create a dedicated user (if not existing)
+ynh_system_user_create --username=$app
+
+#=================================================
+# SETUP SYSTEMD
+#=================================================
+ynh_script_progression --message="Upgrading systemd configuration..."
+
+# Create a dedicated systemd config
+ynh_add_systemd_config
+
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+# SECURE FILES AND DIRECTORIES
+#=================================================
+
+# Set permissions on app files
+chown -R $app: $final_path
+chown -R $app: $datadir
+
+#=================================================
+# INTEGRATE SERVICE IN YUNOHOST
+#=================================================
+ynh_script_progression --message="Integrating service in YunoHost..."
+
+yunohost service add $app --description "$app service" --others_var="$fs_port $datadir" --log "$datadir/log/debug-last.log" --needs_exposed_ports "$fs_port"
+
+#=================================================
+# START SYSTEMD SERVICE
+#=================================================
+ynh_script_progression --message="Starting a systemd service..."
+
+ynh_systemd_action --service_name=$app --action="start" --log_path="$datadir/log/debug-last.log"
+
+#=================================================
+# SETUP SSOWAT
+#=================================================
+ynh_script_progression --message="Upgrading SSOwat configuration..."
+
+# Restrict access to admin only
+yunohost app addaccess --users=$admin $app
+
+#=================================================
+# RELOAD NGINX
+#=================================================
+ynh_script_progression --message="Reloading nginx web server..."
+
+ynh_systemd_action --service_name=nginx --action=reload
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Upgrade of $app completed"