diff --git a/conf/aeneria.cron b/conf/aeneria.cron
index e9b4b3a..6da777c 100644
--- a/conf/aeneria.cron
+++ b/conf/aeneria.cron
@@ -1 +1 @@
-*/20 * * * * #USER# php7.3 #DESTDIR#/bin/console aeneria:fetch-data
+*/20 * * * * __APP__ /usr/bin/php__PHPVERSION__ __FINALPATH__/bin/console aeneria:fetch-data
diff --git a/manifest.json b/manifest.json
index 54aa162..d14eb1a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,5 +1,5 @@
 {
-    "name": "aeneria",
+    "name": "æneria",
     "id": "aeneria",
     "packaging_format": 1,
     "description": {
@@ -14,7 +14,7 @@
         "email": "bonjour@aeneria.com"
     },
     "requirements": {
-        "yunohost": ">= 4.1.7"
+        "yunohost": ">= 4.2.4"
     },
     "multi_instance": true,
     "services": [
diff --git a/scripts/_common.sh b/scripts/_common.sh
index d311cb1..eb5147a 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -19,19 +19,6 @@ extra_php_dependencies="php${YNH_PHP_VERSION}-zip php${YNH_PHP_VERSION}-pgsql ph
 # EXPERIMENTAL HELPERS
 #=================================================
 
-# Execute a command as another user
-# usage: exec_as USER COMMAND [ARG ...]
-ynh_exec_as() {
-  local USER=$1
-  shift 1
-
-  if [[ $USER = $(whoami) ]]; then
-    eval "$@"
-  else
-    sudo -u "$USER" "$@"
-  fi
-}
-
 # Check available space before creating a temp directory.
 #
 # usage: ynh_smart_mktemp --min_size="Min size"
diff --git a/scripts/install b/scripts/install
index a75d459..a3d16db 100644
--- a/scripts/install
+++ b/scripts/install
@@ -57,7 +57,15 @@ ynh_app_setting_set --app=$app --key=deskey --value=$deskey
 #=================================================
 ynh_script_progression --message="Installing dependencies..." --weight=1
 
-ynh_install_app_dependencies $pkg_dependencies
+ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
+
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Configuring system user..." --weight=1
+
+# Create a system user
+ynh_system_user_create --username=$app --home_dir="$final_path"
 
 #=================================================
 # CREATE A PSQL DATABASE
@@ -80,6 +88,10 @@ 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"
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -88,14 +100,6 @@ ynh_script_progression --message="Configuring NGINX web server..." --weight=1
 # Create a dedicated nginx config
 ynh_add_nginx_config
 
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Configuring system user..." --weight=1
-
-# Create a system user
-ynh_system_user_create --username=$app
-
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
@@ -124,10 +128,6 @@ chmod 600 "$aeneria_conf"
 #=================================================
 ynh_script_progression --message="Installing aeneria..." --weight=1
 
-# Set permissions to app files
-chown -R $app: $final_path
-chmod 755 $final_path
-
 # Install aeneria
 pushd $final_path
   ynh_exec_as $app php$phpversion bin/console aeneria:install "$app" -n
@@ -148,15 +148,11 @@ popd
 #=================================================
 # SET UP CRON JOB
 #=================================================
-ynh_script_progression --message="Setuping a cron job..." --weight=1
+ynh_script_progression --message="Setuping a cron..." --weight=1
 
-cron_path="/etc/cron.d/$app"
-cp -a ../conf/aeneria.cron "$cron_path"
-chown root: "$cron_path"
-chmod 644 "$cron_path"
-
-ynh_replace_string "#USER#" "$app" "$cron_path"
-ynh_replace_string "#DESTDIR#" "$final_path" "$cron_path"
+ynh_add_config --template="../conf/aeneria.cron" --destination="/etc/cron.d/$app"
+chown root: "/etc/cron.d/$app"
+chmod 644 "/etc/cron.d/$app"
 
 #=================================================
 # ADAPT HOOK FOR AENERIA INSTANCE
@@ -166,17 +162,6 @@ ynh_script_progression --message="Adapting hooks..." --weight=1
 ynh_replace_string --match_string="APPNAMETOCHANGE" --replace_string="$app" --target_file="../hooks/post_user_create"
 ynh_replace_string --match_string="APPNAMETOCHANGE" --replace_string="$app" --target_file="../hooks/post_user_delete"
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-ynh_script_progression --message="Securing files and directories..." --weight=1
-
-# Set permissions to app files
-chown -R $app: $final_path
-chmod 755 $final_path
-
 #=================================================
 # SETUP SSOWAT
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 21966eb..e5dfdea 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -50,7 +50,7 @@ ynh_secure_remove --file="$final_path"
 #=================================================
 # REMOVE NGINX CONFIGURATION
 #=================================================
-ynh_script_progression --message="Removing nginx web server configuration..." --weight=1
+ynh_script_progression --message="Removing NGINX web server configuration..." --weight=1
 
 # Remove the dedicated nginx config
 ynh_remove_nginx_config
@@ -58,7 +58,7 @@ ynh_remove_nginx_config
 #=================================================
 # REMOVE PHP-FPM CONFIGURATION
 #=================================================
-ynh_script_progression --message="Removing php-fpm configuration..." --weight=1
+ynh_script_progression --message="Removing PHP-FPM configuration..." --weight=1
 
 # Remove the dedicated php-fpm config
 ynh_remove_fpm_config
diff --git a/scripts/restore b/scripts/restore
index 87e3ae3..5325b8b 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -36,8 +36,6 @@ phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 #=================================================
 ynh_script_progression --message="Validating restoration parameters..." --weight=1
 
-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 "
 
@@ -50,6 +48,14 @@ ynh_script_progression --message="Restoring the nginx configuration..." --weight
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
+#=================================================
+# RECREATE THE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Recreating the dedicated system user..." --weight=1
+
+# Create the dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
@@ -57,21 +63,9 @@ ynh_script_progression --message="Restoring the app main directory..." --weight=
 
 ynh_restore_file --origin_path="$final_path"
 
-#=================================================
-# RECREATE THE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Recreating the dedicated system user..." --weight=1
-
-# Create the dedicated user (if not existing)
-ynh_system_user_create --username=$app
-
-#=================================================
-# RESTORE USER RIGHTS
-#=================================================
-ynh_script_progression --message="Restoring user rights..."
-
-# Restore permissions on app files
-chown -R $app: $final_path
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
 
 #=================================================
 # RESTORE THE PHP-FPM CONFIGURATION
@@ -92,7 +86,7 @@ ynh_add_fpm_config --usage=low --footprint=low --package="$extra_php_dependencie
 ynh_script_progression --message="Reinstalling dependencies..." --weight=1
 
 # Define and install dependencies
-ynh_install_app_dependencies $pkg_dependencies
+ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # RESTORE THE PSQL DATABASE
diff --git a/scripts/upgrade b/scripts/upgrade
index a139870..2b52f6f 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -33,6 +33,20 @@ ynh_script_progression --message="Checking version..."
 
 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)..."
+
+# 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
+
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
@@ -58,18 +72,12 @@ if ynh_legacy_permissions_exists; then
 fi
 
 #=================================================
-# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+# CREATE DEDICATED USER
 #=================================================
-ynh_script_progression --message="Backing up the app before upgrading (may take a while)..."
+ynh_script_progression --message="Making sure dedicated system user exists..." --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
+# Create a dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
 
 #=================================================
 # STANDARD UPGRADE STEPS
@@ -99,6 +107,10 @@ then
 	ynh_secure_remove --file="$tmpdir"
 fi
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -112,15 +124,7 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Upgrading dependencies..." --weight=1
 
-ynh_install_app_dependencies "$pkg_dependencies"
-
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1
-
-# Create a dedicated user (if not existing)
-ynh_system_user_create --username=$app
+ynh_exec_warn_less ynh_install_app_dependencies "$pkg_dependencies"
 
 #=================================================
 # PHP-FPM CONFIGURATION
@@ -149,10 +153,6 @@ chmod 600 "$aeneria_conf"
 #=================================================
 ynh_script_progression --message="Upgrading aeneria..." --weight=1
 
-# Set permissions on app files
-chown -R $app: $final_path
-chmod 755 $final_path
-
 # Install dependencies and aeneria
 pushd $final_path
   ynh_exec_as $app php$phpversion bin/console cache:clear -n
@@ -183,36 +183,22 @@ popd
 #=================================================
 ynh_script_progression --message="Setuping a cron job..." --weight=1
 
-cron_path="/etc/cron.d/$app"
-cp -a ../conf/aeneria.cron "$cron_path"
-chown root: "$cron_path"
-chmod 644 "$cron_path"
-
-ynh_replace_string --match_string="#USER#" --replace_string="$app" --target_file="$cron_path"
-ynh_replace_string --match_string="#DESTDIR#" --replace_string="$final_path" --target_file="$cron_path"
+ynh_add_config --template="../conf/aeneria.cron" --destination="/etc/cron.d/$app"
+chown root: "/etc/cron.d/$app"
+chmod 644 "/etc/cron.d/$app"
 
 #=================================================
 # ADAPT HOOK FOR AENERIA INSTANCE
 #=================================================
 ynh_script_progression --message="Adapting hooks..." --weight=1
+
 ynh_replace_string --match_string="APPNAMETOCHANGE" --replace_string=$app --target_file="../hooks/post_user_create"
 ynh_replace_string --match_string="APPNAMETOCHANGE" --replace_string=$app --target_file="../hooks/post_user_delete"
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-ynh_script_progression --message="Securing files and directories..."
-
-# Set permissions on app files
-chown -R $app: $final_path
-chmod 755 $final_path
-
 #=================================================
 # RELOAD NGINX
 #=================================================
-ynh_script_progression --message="ReloadingNGINX web server..." --weight=1
+ynh_script_progression --message="Reloading NGINX web server..." --weight=1
 
 ynh_systemd_action --service_name=nginx --action=reload