diff --git a/manifest.json b/manifest.json
index 0c5b69a..b3f59d0 100644
--- a/manifest.json
+++ b/manifest.json
@@ -24,29 +24,17 @@
             {
                 "name": "domain",
                 "type": "domain",
-                "ask": {
-                    "en": "Choose a domain name for Distbin",
-                    "fr": "Choisissez un nom de domaine pour Distbin"
-                },
                 "example": "example.com"
             },
             {
                 "name": "path",
                 "type": "path",
-                "ask": {
-                    "en": "Choose a path for Distbin",
-                    "fr": "Choisissez un chemin pour Distbin"
-                },
                 "example": "/distbin",
                 "default": "/distbin"
             },
             {
                 "name": "is_public",
                 "type": "boolean",
-                "ask": {
-                    "en": "Is it a public application?",
-                    "fr": "Est-ce une application publique ?"
-                },
                 "default": true
             }
         ]
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 810d633..0d2ca6e 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -7,7 +7,7 @@
 # dependencies used by the app
 pkg_dependencies="ca-certificates curl sudo"
 
-nodejs_version=10
+NODEJS_VERSION=10
 
 #=================================================
 # PERSONAL HELPERS
diff --git a/scripts/backup b/scripts/backup
index 2d2d5ef..5146c2b 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -6,7 +6,7 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-#Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
+# 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
 
diff --git a/scripts/change_url b/scripts/change_url
index cb80a0e..b934598 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -33,15 +33,16 @@ port=$(ynh_app_setting_get --app=$app --key=port)
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
-ynh_script_progression --message="Backing up the app before changing its url (may take a while)..."
+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 () {
+	ynh_clean_check_starting
 	# 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
+	# Restore it if the upgrade fails
 	ynh_restore_upgradebackup
 }
 # Exit if an error occurs during the execution of the script
diff --git a/scripts/install b/scripts/install
index 4007e59..1005197 100644
--- a/scripts/install
+++ b/scripts/install
@@ -65,7 +65,7 @@ ynh_app_setting_set --app=$app --key=port --value=$port
 ynh_script_progression --message="Installing dependencies..."
 
 ynh_install_app_dependencies $pkg_dependencies
-ynh_install_nodejs --nodejs_version=$nodejs_version
+ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
@@ -81,7 +81,7 @@ ynh_setup_source --dest_dir="$final_path"
 #=================================================
 ynh_script_progression --message="Configuring NGINX web server..."
 
-# Create a dedicated nginx config
+# Create a dedicated NGINX config
 ynh_add_nginx_config
 
 #=================================================
@@ -90,7 +90,7 @@ ynh_add_nginx_config
 ynh_script_progression --message="Configuring system user..."
 
 # Create a system user
-ynh_system_user_create --username="$app" --home_dir="$final_path"
+ynh_system_user_create --username=$app --home_dir="$final_path"
 
 #=================================================
 # SPECIFIC SETUP
@@ -120,13 +120,13 @@ chown -R "$app":"$app" "$final_path"
 
 pushd $final_path
 	ynh_use_nodejs
-	sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts
-	sudo -u $app $ynh_node_load_PATH $ynh_npm run build
+	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts
+	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm run build
 	cp package* dist/ 
 popd
 
 pushd $final_path/dist
-	sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts --production
+	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts --production
 popd
 
 #=================================================
@@ -152,7 +152,7 @@ ynh_add_config --template="../conf/.env" --destination="$final_path/.env"
 ynh_script_progression --message="Securing files and directories..."
 
 # Set permissions to app files
-chown -R "$app":"$app" "$final_path"
+chown -R $app:$app $final_path
 
 #=================================================
 # SETUP LOGROTATE
diff --git a/scripts/remove b/scripts/remove
index ca83f0c..cd37d47 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -26,7 +26,7 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 # REMOVE SERVICE INTEGRATION IN YUNOHOST
 #=================================================
 
-# Remove the service from the list of services known by Yunohost (added from `yunohost service add`)
+# 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..."
diff --git a/scripts/restore b/scripts/restore
index 3556fb1..78afd1b 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -6,7 +6,7 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-#Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
+# 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
 
@@ -46,7 +46,7 @@ test ! -d $final_path \
 #=================================================
 # RESTORE THE NGINX CONFIGURATION
 #=================================================
-ynh_script_progression --message="Restoring the NGINX configuration..."
+ynh_script_progression --message="Restoring the NGINX web server configuration..."
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
@@ -71,7 +71,7 @@ ynh_system_user_create --username=$app --home_dir=$final_path
 ynh_script_progression --message="Restoring user rights..."
 
 # Restore permissions on app files
-chown -R $app:$app "$final_path"
+chown -R $app:$app $final_path
 
 #=================================================
 # CREATE LOG FOLDER
@@ -90,7 +90,7 @@ ynh_script_progression --message="Reinstalling dependencies..."
 
 # Define and install dependencies
 ynh_install_app_dependencies $pkg_dependencies
-ynh_install_nodejs --nodejs_version=$nodejs_version
+ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 
 #=================================================
 # RESTORE SYSTEMD
diff --git a/scripts/upgrade b/scripts/upgrade
index cd015c3..6f1a9c4 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -48,9 +48,9 @@ ynh_script_progression --message="Backing up the app before upgrading (may take
 # Backup the current version of the app
 ynh_backup_before_upgrade
 ynh_clean_setup () {
+	ynh_clean_check_starting
 	# restore it if the upgrade fails
 	ynh_restore_upgradebackup
-	ynh_clean_check_starting
 }
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
@@ -90,7 +90,7 @@ ynh_add_nginx_config
 ynh_script_progression --message="Upgrading dependencies..."
 
 ynh_install_app_dependencies $pkg_dependencies
-ynh_install_nodejs --nodejs_version=$nodejs_version
+ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 
 #=================================================
 # CREATE DEDICATED USER
@@ -130,13 +130,13 @@ chown -R "$app":"$app" "$final_path"
 
 pushd $final_path
 	ynh_use_nodejs
-	sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts
-	sudo -u $app $ynh_node_load_PATH $ynh_npm run build
+	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts
+	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm run build
 	cp package* dist/ 
 popd
 
 pushd $final_path/dist
-	sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts  --production
+	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts  --production
 popd
 
 #=================================================
@@ -148,9 +148,9 @@ ynh_script_progression --message="Upgrading systemd configuration..."
 ynh_add_systemd_config
 
 #=================================================
-# MODIFY A CONFIG FILE
+# UPDATE A CONFIG FILE
 #=================================================
-ynh_script_progression --message="Modifying config file..."
+ynh_script_progression --message="Updating a config file..."
 
 ynh_add_config --template="../conf/.env" --destination="$final_path/.env"