diff --git a/scripts/install b/scripts/install
index a014b05..63918da 100644
--- a/scripts/install
+++ b/scripts/install
@@ -19,6 +19,8 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$YNH_APP_ARG_DOMAIN
 path=$YNH_APP_ARG_PATH
 admin=$YNH_APP_ARG_ADMIN
+adminpass=$YNH_APP_ARG_ADMINPASS
+title=$YNH_APP_ARG_TITLE
 is_public=$YNH_APP_ARG_IS_PUBLIC
 final_path=/var/www/$app
 
@@ -114,6 +116,18 @@ fi
 # Reload services
 sudo service nginx reload
 
+### POST-INSTALL ###
+sed -i "s@YNH_WWW_DOMAIN@$domain@g" ../sources/configuration.yml
+sed -i "s@YNH_WWW_APP@$app@g" ../sources/configuration.yml
+sed -i "s@YNH_DB_PASS@$dbpass@g" ../sources/configuration.yml
+sed -i "s@YNH_ADMIN_USER@$admin@g" ../sources/configuration.yml
+sed -i "s@YNH_ADMIN_PASS@$adminpass@g" ../sources/configuration.yml
+adminemail=ynh_user_get_info $admin mail
+sed -i "s@YNH_ADMIN_EMAIL@$adminemail@g" ../sources/configuration.yml
+sed -i "s@YNH_FORUM_TITLE@$title@g" ../sources/configuration.yml
+sudo cp ../sources/configuration.yml $final_path
+sudo su - www-data -s /bin/bash -c "cd $final_path && php -d memory_limit=-1 flarum install -f configuration.yml"
+
 # Tell user the MySQL credentials for post-installation
 echo "MySQL database user is " $dbuser
 echo "MySQL database password is " $dbpass