diff --git a/scripts/backup b/scripts/backup
index b16ecdd..fcbb6d0 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -32,7 +32,7 @@ data_path=$(ynh_app_setting_get --app="$app" --key=data_path)
 log_file=$(ynh_app_setting_get --app="$app" --key=log_file)
 path_url=$(ynh_app_setting_get --app="$app" --key=path_url)
 python=$(ynh_app_setting_get --app="$app" --key=python)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
+db_name=$(ynh_app_setting_get --app="$app" --key=db_name)
 
 #=================================================
 # DECLARE DATA AND CONF FILES TO BACKUP
diff --git a/scripts/change_url b/scripts/change_url
index 329252a..fd09911 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -23,7 +23,7 @@ new_domain=$YNH_APP_NEW_DOMAIN
 #=================================================
 ynh_script_progression --message="Loading installation settings..."
 
-final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+final_path=$(ynh_app_setting_get --app="$app" --key=final_path)
 
 #=================================================
 # BACKUP BEFORE CHANGE URL THEN ACTIVE TRAP
@@ -54,7 +54,7 @@ fi
 #=================================================
 ynh_script_progression --message="Stopping a systemd service..."
 
-ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
+ynh_systemd_action --service_name="$app" --action=stop --log_path="/var/log/$app/$app.log"
 
 #=================================================
 # MODIFY URL IN NGINX CONF
@@ -80,7 +80,7 @@ fi
 #=================================================
 ynh_script_progression --message="Starting a systemd service..."
 
-ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"
+ynh_systemd_action --service_name="$app" --action=start --log_path="/var/log/$app/$app.log"
 
 #=================================================
 # RELOAD NGINX
diff --git a/scripts/install b/scripts/install
index ceab77c..bd0d117 100644
--- a/scripts/install
+++ b/scripts/install
@@ -83,10 +83,10 @@ mynh_system_user_create
 #=================================================
 ynh_script_progression --message="Creating a MySQL database..."
 
-db_name=$(ynh_sanitize_dbid --db_name=$app)
-db_user=$db_name
-ynh_app_setting_set --app=$app --key=db_name --value=$db_name
-ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name
+db_name=$(ynh_sanitize_dbid --db_name="$app")
+db_user="$db_name"
+ynh_app_setting_set --app="$app" --key=db_name --value="$db_name"
+ynh_mysql_setup_db --db_user="$db_user" --db_name="$db_name"
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
@@ -95,11 +95,11 @@ ynh_script_progression --message="Setting up source files..."
 
 # create a directory for the installation of Home Assistant
 myynh_create_dir "$final_path"
-chown -R $app: "$final_path"
+chown -R "$app": "$final_path"
 
 # create a directory for the datas of Home Assistant
 myynh_create_dir "$data_path/.cache"
-chown -R $app: "$data_path"
+chown -R "$app": "$data_path"
 
 # installation in a virtual environment
 ynh_script_progression --message="Installing Home Assistant in a virtual environment..."
@@ -165,13 +165,13 @@ yunohost service add "$app" --description="Home Assistant server" --log="$log_fi
 ynh_script_progression --message="Starting a systemd service..."
 
 # start systemd service with --verbose 
-ynh_systemd_action --service_name="$app" --action="start" --line_match="Home Assistant initialized" --log_path="$log_file" --timeout=3600
+ynh_systemd_action --service_name="$app" --action=start --line_match="Home Assistant initialized" --log_path="$log_file" --timeout=3600
 
 # remove --verbose from systemd service
 ynh_replace_string --match_string=" --verbose" --replace_string="" --target_file="/etc/systemd/system/$app.service"
 ynh_store_file_checksum --file="/etc/systemd/system/$app.service"
 systemctl daemon-reload
-ynh_systemd_action --service_name="$app" --action="restart"
+ynh_systemd_action --service_name="$app" --action=restart
 
 #=================================================
 # SETUP SSOWAT
diff --git a/scripts/remove b/scripts/remove
index b2a2a39..1d765b0 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -18,15 +18,15 @@ ynh_script_progression --message="Loading installation settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
-domain=$(ynh_app_setting_get --app=$app --key=domain)
-port=$(ynh_app_setting_get --app=$app --key=port)
+domain=$(ynh_app_setting_get --app="$app" --key=domain)
+port=$(ynh_app_setting_get --app="$app" --key=port)
 final_path=$(ynh_app_setting_get --app="$app" --key=final_path)
 data_path=$(ynh_app_setting_get --app="$app" --key=data_path)
 log_file=$(ynh_app_setting_get --app="$app" --key=log_file)
 path_url=$(ynh_app_setting_get --app="$app" --key=path_url)
 python=$(ynh_app_setting_get --app="$app" --key=python)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-db_user=$db_name
+db_name=$(ynh_app_setting_get --app="$app" --key=db_name)
+db_user="$db_name"
 
 #=================================================
 # STANDARD REMOVE
@@ -58,7 +58,7 @@ ynh_remove_logrotate
 #=================================================
 ynh_script_progression --message="Removing the MySQL database..."
 
-ynh_mysql_remove_db --db_user=$db_user --db_name=$db_name
+ynh_mysql_remove_db --db_user="$db_user" --db_name="$db_name"
 
 #=================================================
 # REMOVE APP MAIN DIR
@@ -121,7 +121,7 @@ ynh_secure_remove --file="$(dirname "$log_file")"
 #=================================================
 ynh_script_progression --message="Removing the dedicated system user..."
 
-ynh_system_user_delete --username=$app
+ynh_system_user_delete --username="$app"
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/restore b/scripts/restore
index d657d38..9dd04c3 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -37,8 +37,8 @@ data_path=$(ynh_app_setting_get --app="$app" --key=data_path)
 log_file=$(ynh_app_setting_get --app="$app" --key=log_file)
 path_url=$(ynh_app_setting_get --app="$app" --key=path_url)
 python=$(ynh_app_setting_get --app="$app" --key=python)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-db_user=$db_name
+db_name=$(ynh_app_setting_get --app="$app" --key=db_name)
+db_user="$db_name"
 
 #=================================================
 # CHECK IF THE APP CAN BE RESTORED
@@ -93,9 +93,9 @@ myynh_install_dependencies --python="$python"
 #=================================================
 ynh_script_progression --message="Restoring the MySQL database..."
 
-db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
-ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
-ynh_mysql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./db.sql
+db_pwd=$(ynh_app_setting_get --app="$app" --key=mysqlpwd)
+ynh_mysql_setup_db --db_user="$db_user" --db_name="$db_name" --db_pwd="$db_pwd"
+ynh_mysql_connect_as --user="$db_user" --password="$db_pwd" --database="$db_name" < ./db.sql
 
 #=================================================
 # RESTORE VARIOUS FILES
@@ -112,7 +112,7 @@ ynh_restore_file --origin_path="$(dirname "$log_file")"
 ynh_script_progression --message="Restoring the systemd configuration..."
 
 ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
-systemctl enable $app.service --quiet
+systemctl enable "$app".service --quiet
 
 #=================================================
 # RESTORE THE LOGROTATE CONFIGURATION
@@ -139,15 +139,7 @@ yunohost service add "$app" --description="Home Assistant server" --log="$log_fi
 #=================================================
 ynh_script_progression --message="Starting a systemd service..."
 
-# start systemd service with --verbose 
-sed --in-place "/ExecStart/s/$/ --verbose/" "/etc/systemd/system/$app.service"
-ynh_systemd_action --service_name="$app" --action=start --line_match="Home Assistant initialized" --log_path="$log_file" --timeout=3600
-
-# remove --verbose from service and restart
-ynh_replace_string --match_string=" --verbose" --replace_string="" --target_file="/etc/systemd/system/$app.service"
-ynh_store_file_checksum --file="/etc/systemd/system/$app.service"
-systemctl daemon-reload
-ynh_systemd_action --service_name="$app" --action=restart
+ynh_systemd_action --service_name="$app" --action=start
 
 #=================================================
 # GENERIC FINALIZATION
@@ -156,7 +148,6 @@ ynh_systemd_action --service_name="$app" --action=restart
 #=================================================
 ynh_script_progression --message="Reloading NGINX web server and PHP-FPM..."
 
-ynh_systemd_action --service_name=php$phpversion-fpm --action=reload
 ynh_systemd_action --service_name=nginx --action=reload
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index aa37b22..f2d2fb0 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -43,7 +43,7 @@ ynh_abort_if_errors
 #=================================================
 ynh_script_progression --message="Stopping a systemd service..."
 
-ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
+ynh_systemd_action --service_name="$app" --action=stop --log_path="/var/log/$app/$app.log"
 
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
@@ -79,7 +79,7 @@ fi
 if [ ! -d "$final_path" ]; then
 	# move $final_path to new directory
 	mv "/opt/yunohost/$app" "$final_path"
-	chown -R $app: "$final_path"
+	chown -R "$app": "$final_path"
 fi
 if [ ! -d "$data_path" ]; then
 	# move $data_path to new directory
@@ -87,7 +87,7 @@ if [ ! -d "$data_path" ]; then
 	find "$data_path/.$app" -maxdepth 1 -mindepth 1 -exec mv {} "$data_path" \;
 	rmdir "$data_path/.$app"
 	ynh_replace_string --match_string="/home/homeassistant/.homeassistant" --replace_string="$data_path" --target_file="$data_path/configuration.yaml"
-	chown -R $app: "$data_path"
+	chown -R "$app": "$data_path"
 fi
 if [ ! -f "$log_file" ]; then
 	# create a directory with its log file
@@ -98,10 +98,10 @@ fi
 # changes introduced in 2021.12.8~ynh1
 if [ -z $(ynh_app_setting_get --app="$app" --key=db_name) ]; then
 	# create a MySQL database
-	db_name=$(ynh_sanitize_dbid --db_name=$app)
-	db_user=$db_name
-	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
-	ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name
+	db_name=$(ynh_sanitize_dbid --db_name="$app")
+	db_user="$db_name"
+	ynh_app_setting_set --app=$app --key=db_name --value="$db_name"
+	ynh_mysql_setup_db --db_user="$db_user" --db_name="$db_name"
 	db_pwd=$(ynh_app_setting_get --app="$app" --key=mysqlpwd)
 	if [ -z $(sed -n "/recorder:/=" configuration.yaml) ]; then
 		sed -i "$ a recorder:" "$data_path/configuration.yaml"
@@ -188,13 +188,13 @@ yunohost service add "$app" --description="Home Assistant server" --log="$log_fi
 ynh_script_progression --message="Starting a systemd service..."
 
 # start systemd service with --verbose 
-ynh_systemd_action --service_name="$app" --action="start" --line_match="Home Assistant initialized" --log_path="$log_file" --timeout=3600
+ynh_systemd_action --service_name="$app" --action=start --line_match="Home Assistant initialized" --log_path="$log_file" --timeout=3600
 
 # remove --verbose from service
 ynh_replace_string --match_string=" --verbose" --replace_string="" --target_file="/etc/systemd/system/$app.service"
 ynh_store_file_checksum --file="/etc/systemd/system/$app.service"
 systemctl daemon-reload
-ynh_systemd_action --service_name="$app" --action="restart"
+ynh_systemd_action --service_name="$app" --action=restart
 
 #=================================================
 # RELOAD NGINX