diff --git a/legacy_app_ynh/scripts/install b/legacy_app_ynh/scripts/install
index 616fec6..a62e20d 100644
--- a/legacy_app_ynh/scripts/install
+++ b/legacy_app_ynh/scripts/install
@@ -6,9 +6,6 @@ number=$YNH_APP_INSTANCE_NUMBER
 domain=$YNH_APP_ARG_DOMAIN
 path=$YNH_APP_ARG_PATH
 
-# Source app helpers
-source /usr/share/yunohost/helpers
-
 # Check domain/path availability
 sudo yunohost app checkurl $domain/$path -a $app
 
@@ -21,11 +18,17 @@ sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf
 sudo mkdir -p /var/www/$app
 sudo cp ../conf/index.html /var/www/$app
 
+sudo yunohost app checkport 12345
+if [[ ! $? -eq 0 ]]; then
+   echo "Ogod noez the port 12345 aint available!!"
+   exit 1
+fi
+
 # Create a dummy mysql db
 db_user=$app
 db_pwd="yoloswag42"
-ynh_mysql_create_db "$db_user" "$db_user" $db_pwd
-ynh_app_setting_set $app mysqlpwd $db_pwd
+sudo yunohost app initdb "$db_user" -p $db_pwd
+sudo yunohost app setting $app mysqlpwd -v $db_pwd
 
 # Other custom stuff
 sudo cp ../sources/importantfile /etc/
diff --git a/legacy_app_ynh/scripts/restore b/legacy_app_ynh/scripts/restore
index d35873c..6fa75e5 100644
--- a/legacy_app_ynh/scripts/restore
+++ b/legacy_app_ynh/scripts/restore
@@ -1,17 +1,12 @@
-#!/bin/bash
-
 # No set -eu for this particular app restore script (see comment near the end)
 #set -eu
 
-# Source app helpers
-source /usr/share/yunohost/helpers
-
 restore_dir=$1
 app=$2
 
 # Get old parameter of the app
-domain=$(ynh_app_setting_get $app domain)
-path=$(ynh_app_setting_get $app path)
+domain=$(sudo yunohost app setting $app domain)
+path=$(sudo yunohost app setting $app path)
 
 # Restore www directory
 sudo cp -a "${restore_dir}/var/www/$app" /var/www/$app
@@ -23,10 +18,16 @@ sudo cp -a "${restore_dir}/conf/nginx.conf" $nginx_conf
 # Restore custom file
 sudo cp -a "${restore_dir}/importantfile" /etc/importantfile
 
+sudo yunohost app checkport 12345
+if [[ ! $? -eq 0 ]]; then
+   echo "Ogod noez the port 12345 aint available!!"
+   exit 1
+fi
+
 # Restore the database 
 db_user=$app
-db_pwd=$(ynh_app_setting_get $app mysqlpwd)
-ynh_mysql_create_db $db_user $db_user $db_pwd
+db_pwd=$(sudo yunohost app setting $app mysqlpwd)
+sudo yunohost app initdb $db_user -p $db_pwd
 sudo su -c "mysql -u $db_user -p$db_pwd $app < ${restore_dir}/db.sql"
 # Some scripts wanted to delete the db.sql... This won't make the script crash
 # even if restore_dir is in read-only as long as there's no set -eu activated...