diff --git a/manifest.toml b/manifest.toml
index f8a7c75..255cbc4 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -7,7 +7,7 @@ name = "Galette"
 description.en = "Membership management web application for non profit organizations"
 description.fr = "Outil de gestion d'adhérents et de cotisation en ligne pour associations"
 
-version = "1.1.3~ynh1"
+version = "1.1.3~ynh2"
 
 maintainers = []
 
@@ -49,6 +49,22 @@ ram.runtime = "50M"
     [install.password]
     type = "password"
 
+    [install.db_type]
+     ask.fr = "quel moteur de base de données souhaitez-vous"
+     ask.en = "which data base engine do you prefer"
+     help.fr : "Si vous ne savez pas quoi chosir, c'est que ça n'a aucune importance;"
+     help.en = "If you don't know what to choose ... don't choose ;-) "
+     type = "select"
+     choices = ["mysql","postgresql"]
+     default = "postgresql"
+
+    [install.tb_prefix]
+     ask.fr = "voulez-vous utiliser un préfixe de table différent du défaut (galette_)?"
+     ask.help = "si oui, veillez à le terminer par un _ ("souligné", "tiret du 8",...)
+     type = "string"
+     default = "galette_"
+ 
+
 [resources]
     [resources.sources.main]
     url = "https://www.galette.eu/download/galette-1.1.3.tar.bz2"
@@ -66,7 +82,19 @@ ram.runtime = "50M"
     main.url = "/"
 
     [resources.apt]
-    packages = "postgresql, php8.3-tidy, php8.3-intl, php8.3-mbstring, php8.3-xml, php8.3-gd, php8.3-curl, php8.3-pgsql"
+    
+    packages = "php8.3-tidy, php8.3-intl, php8.3-mbstring, php8.3-xml, php8.3-gd, php8.3-curl"
+    packages_from_raw_bash = """
+       if [[ "$db_type" == "mysql" ]]; then 
+   	  echo "mariadb-server, php8.3-mysql"
+       fi
+       elif [[ "$db_type" == "postgresql" ]]; then
+            echo "postgresql, php8.3-pgsql"
+       fi
+    """
 
-    [resources.database]
-    type = "postgresql"
+
+# seulement une de ces lignes est possible. Peut-on faire ça par un test ? ou suffit-il d'initialiser la base dans le scriot d'install ?
+#    [resources.database]
+#     type = "mysql"
+#     type = "postgresql"
diff --git a/scripts/backup b/scripts/backup
index 91e34e0..c2b7b1f 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -36,7 +36,11 @@ ynh_backup --src_path="/etc/logrotate.d/$app"
 #=================================================
 ynh_print_info --message="Backing up the PostgreSQL database..."
 
-ynh_psql_dump_db --database="$db_name" > db.sql
+if [ $db_type == "mysql" ]; then
+ ynh_mysql_dump_db --database="$db_name" > db.sql
+elif [ $db_type == "postgresql" ]; then
+ ynh_psql_dump_db --database="$db_name" > db.sql
+fi
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/install b/scripts/install
index 5825bed..1afbc49 100644
--- a/scripts/install
+++ b/scripts/install
@@ -26,6 +26,23 @@ ynh_setup_source --dest_dir="$install_dir"
 chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
 
+#=================================================
+# DATA BASE CREATION (not done via ressources_database
+#=================================================
+ynh_script_progression --message="icréating data base for $app..." --weight=1
+    db_name=$(ynh_sanitize_dbid --db_name=$app)
+    db_user=$db_name
+    db_pwd=$(ynh_string_random --length=30)
+    ynh_app_setting_set --app=$app --key=db_name --value=$db_name
+    ynh_app_setting_set --app=$app --key=db_user --value=$db_user
+    ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
+
+    if [ $db_type == "mysql" ]; then
+        ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+    elif [ $db_type == "postgresql" ]; then
+        ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+    fi
+
 #=================================================
 # SYSTEM CONFIGURATION
 #=================================================
@@ -44,24 +61,32 @@ ynh_use_logrotate
 # SPECIFIC SETUP
 #=================================================
 # ADD A CONFIGURATION
+# suppress to let galette create it it's proper way
 #=================================================
-ynh_script_progression --message="Adding a configuration file..." --weight=1
+#ynh_script_progression --message="Adding a configuration file..." --weight=1
 
-ynh_add_config --template="config.inc.php" --destination="$install_dir/galette/config/config.inc.php"
+#ynh_add_config --template="config.inc.php" --destination="$install_dir/galette/config/config.inc.php"
 
-chmod 400 "$install_dir/galette/config/config.inc.php"
-chown $app:$app "$install_dir/galette/config/config.inc.php"
+#chmod 400 "$install_dir/galette/config/config.inc.php"
+#chown $app:$app "$install_dir/galette/config/config.inc.php"
 
 #=================================================
 # SETUP APPLICATION WITH CURL
 #=================================================
 ynh_script_progression --message="Setuping application with CURL..."
 
+    if [ $db_type == "mysql" ]; then
+        db_port="3306"
+    elif [ $db_type == "postgresql" ]; then
+        db_port="5432"
+    fi
+
+
 # Installation with curl
 ynh_script_progression --message="Finalizing installation..."
 ynh_local_curl "/installer.php" "install_permsok=1"
 ynh_local_curl "/installer.php"  "install_type=i"
-ynh_local_curl "/installer.php"  "install_dbtype=pgsql" "install_dbhost=localhost" "install_dbport=5432" "install_dbuser=$db_user" "install_dbpass=$db_pwd" "install_dbname=$db_name" "install_dbprefix=galette_"
+ynh_local_curl "/installer.php"  "install_dbtype=$db_type" "install_dbhost=localhost" "install_dbport=$db_port" "install_dbuser=$db_user" "install_dbpass=$db_pwd" "install_dbname=$db_name" "install_dbprefix=$tb_prefix"
 ynh_local_curl "/installer.php"  "install_dbperms_ok=1"
 ynh_local_curl "/installer.php"  "install_dbwrite_ok=1"
 ynh_local_curl "/installer.php"  "install_adminlogin=$admin" "install_adminpass=$password" "install_adminpass_verif=$password"
diff --git a/scripts/restore b/scripts/restore
index 374a644..2fd3a41 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -31,7 +31,11 @@ chown -R $app:www-data "$install_dir"
 #=================================================
 ynh_script_progression --message="Restoring the PostgreSQL database..." --weight=1
 
-ynh_psql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./db.sql
+if [ $db_type == "mysql" ]; then
+ ynh_mysql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./db.sql
+elif [ $db_type == "postgresql" ]; then
+ ynh_psql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./db.sql
+fi
 
 #=================================================
 # RESTORE SYSTEM CONFIGURATIONS