We highly suggest to test it on a staging/development environment first.
Tested on Magento 2.3 / 2.4 (PHP version up to 7.4). Compatible with Magento 2.4.2+ If you have trouble running it on an older Magento version, please, try to update it first.
composer require unzer-direct/magento2
php bin/magento module:enable UnzerDirect_Gateway
php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy
php bin/magento setup:di:compile
php bin/magento cache:clean
Please note that FTP installation will not work as this module has requirements that will be auto installed when using composer
Pull requests welcome.