diff --git a/scripts/install b/scripts/install
index 1114a72..8763204 100644
--- a/scripts/install
+++ b/scripts/install
@@ -1,35 +1,73 @@
 #!/bin/bash
 
-source .fonctions
-set -eu
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source _common.sh
+source /usr/share/yunohost/helpers
+
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
+
+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
+
+#=================================================
+# RETRIEVE ARGUMENTS FROM THE MANIFEST
+#=================================================
 
-# Retrieve arguments
 domain=$YNH_APP_ARG_DOMAIN
 path=$YNH_APP_ARG_PATH
 is_public=$YNH_APP_ARG_IS_PUBLIC
 
 app=$YNH_APP_INSTANCE_NAME
-
-# Source app helpers
-source /usr/share/yunohost/helpers
-
 script_dir=$PWD
 
-# Vérifie que les variables ne sont pas vides.
-CHECK_VAR "$app" "app name not set"
-CHECK_VAR "$script_dir" "script_dir not set"
+#=================================================
+# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
+#=================================================
 
-CHECK_PATH	# Vérifie et corrige la syntaxe du path.
-CHECK_DOMAINPATH	# Vérifie la disponibilité du path et du domaine.
-
-CHECK_FINALPATH	# Vérifie que le dossier de destination n'est pas déjà utilisé.
-
-# Source YunoHost helpers
-source /usr/share/yunohost/helpers
-
-# Copy files to the right place
+### 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
-sudo git clone https://github.com/pips-/shuri.git $final_path
+test ! -e "$final_path" || ynh_die "This path already contains a folder"
+
+# Normalize the url path syntax
+path_url=$(ynh_normalize_url_path $path_url)
+
+# Check web path availability
+ynh_webpath_available $domain $path_url
+# Register (book) web path
+ynh_webpath_register $app $domain $path_url
+
+#=================================================
+# STORE SETTINGS FROM MANIFEST
+#=================================================
+
+ynh_app_setting_set $app domain $domain
+ynh_app_setting_set $app path $path_url
+ynh_app_setting_set $app is_public $is_public
+
+#=================================================
+# DOWNLOAD, CHECK AND UNPACK SOURCE
+#=================================================
+
+ynh_app_setting_set $app final_path $final_path
+# Download, check integrity, uncompress and patch the source from app.src
+ynh_setup_source "$final_path"
+
+#=================================================
+# Install Composer + install Dependencies
+#=================================================
+
 pushd $final_path
 sudo php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
 sudo php -r "if (hash_file('SHA384', 'composer-setup.php') === '544e09ee996cdf60ece3804abc52599c22b1f40f4323403c44d44fdfdd586475ca9813a858088ffbc1f233e9b180f061') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
@@ -39,23 +77,40 @@ sudo ./composer.phar install
 sudo mkdir db
 popd
 
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+
+# Create a system user
+ynh_system_user_create $app
+
+#=================================================
 # Files owned by root, www-data can just read
-sudo chown www-data:www-data $final_path -R
-sudo chmod 755 $final_path -R
+#=================================================
 
-# Modify Nginx configuration file and copy it to Nginx conf directory
-sed -i "s@YNH_WWW_PATH@$path@g" ../conf/nginx.conf
-sed -i "s@YNH_WWW_ALIAS@$final_path/@g" ../conf/nginx.conf
-nginxconf=/etc/nginx/conf.d/$domain.d/$app.conf
-sudo cp ../conf/nginx.conf $nginxconf
-sudo chown root: $nginxconf
-sudo chmod 600 $nginxconf
+chown $app:$app $final_path -R
+chmod 755 $final_path -R
 
-ynh_app_setting_set "$app" is_public "$is_public"
-if [ "$is_public" = "Yes" ];
+#=================================================
+# NGINX CONFIGURATION
+#=================================================
+
+# Create a dedicated nginx config
+ynh_add_nginx_config
+
+#=================================================
+# SETUP SSOWAT
+#=================================================
+
+# Make app public if necessary
+if [ $is_public -eq 1 ]
 then
-  ynh_app_setting_set "$app" unprotected_uris "/"
+	# unprotected_uris allows SSO credentials to be passed anyway.
+	ynh_app_setting_set $app unprotected_uris "/"
 fi
 
-sudo service nginx reload
-sudo yunohost app ssowatconf
+#=================================================
+# RELOAD NGINX
+#=================================================
+
+systemctl reload nginx