diff --git a/scripts/upgrade b/scripts/upgrade
index 5d3a94a..118f63e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -9,115 +9,33 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# LOAD SETTINGS
-#=================================================
-#REMOVEME? ynh_script_progression --message="Loading installation settings..." --weight=1
-
-#REMOVEME? app=$YNH_APP_INSTANCE_NAME
-
-#REMOVEME? domain=$(ynh_app_setting_get "$app" domain)
-#REMOVEME? #REMOVEME? install_dir=$(ynh_app_setting_get --app=$app --key=install_dir)
-#REMOVEME? path=$(ynh_app_setting_get --app=$app --key=path)
-#REMOVEME? phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
-
-#=================================================
-# CHECK VERSION
-#=================================================
-
-upgrade_type=$(ynh_check_app_version_changed)
-
-#=================================================
-# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
-#=================================================
-ynh_script_progression --message="Backing up $app before upgrading (may take a while)..." --weight=7
-
-# Backup the current version of the app
-#REMOVEME? ynh_backup_before_upgrade
-#REMOVEME? ynh_clean_setup () {
-	# restore it if the upgrade fails
-#REMOVEME? 	ynh_restore_upgradebackup
-}
-# Exit if an error occurs during the execution of the script
-#REMOVEME? ynh_abort_if_errors
-
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
-ynh_script_progression --message="Ensuring downward compatibility..." --weight=2
+# ynh_script_progression --message="Ensuring downward compatibility..." --weight=2
 
-# If install_dir doesn't exist, create it
-if [ -z "$install_dir" ]; then
-#REMOVEME? 	install_dir=/var/www/$app
-#REMOVEME? 	ynh_app_setting_set --app=$app --key=install_dir --value=$install_dir
-fi
-
-# Cleaning legacy permissions
-#REMOVEME? if ynh_legacy_permissions_exists; then
-#REMOVEME? 	ynh_legacy_permissions_delete_all
-
-	ynh_app_setting_delete --app=$app --key=is_public
-fi
-
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-#REMOVEME? ynh_script_progression --message="Configuring system user..." --weight=1
-
-# Create a system user
-#REMOVEME? ynh_system_user_create --username=$app --home_dir="$install_dir"
-
-#=================================================
-# STANDARD UPGRADE STEPS
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+ynh_script_progression --message="Upgrading source files..." --weight=7
 
-if [ "$upgrade_type" == "UPGRADE_APP" ]
-then
-	ynh_script_progression --message="Upgrading source files..." --weight=7
-
-	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$install_dir"
-fi
-
-chmod 750 "$install_dir"
+# Download, check integrity, uncompress and patch the source from app.src
+ynh_setup_source --dest_dir="$install_dir"
 chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
-chmod -R ga+w "$install_dir/data"
+chown -R "$app:www-data" "$install_dir"
+# chmod -R ga+w "$install_dir/data"
 
 #=================================================
-# NGINX CONFIGURATION
+# REAPPLY SYSTEM CONFIGURATIONS
 #=================================================
-ynh_script_progression --message="Configuring NGINX web server..." --weight=2
+ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1
 
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# UPGRADE DEPENDENCIES
-#=================================================
-#REMOVEME? ynh_script_progression --message="Upgrading dependencies..." --weight=1
-
-#REMOVEME? ynh_install_app_dependencies $pkg_dependencies
-
-#=================================================
-# PHP-FPM CONFIGURATION
-#=================================================
-ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=2
-
 # Create a dedicated PHP-FPM config
 ynh_add_fpm_config --usage=low --footprint=low
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# RELOAD NGINX
-#=================================================
-#REMOVEME? ynh_script_progression --message="Reloading NGINX web server..." --weight=2
-
-#REMOVEME? ynh_systemd_action --service_name=nginx --action=reload
-
 #=================================================
 # END OF SCRIPT
 #=================================================