For Shopware Versions >= 5.2.17 use this repo.

For Shopware Versions < 5.2.17 use https://github.com/ltckomfortkasse/komfortkasse-shopware

For Shopware Versions >= 6.0 use https://github.com/ltckomfortkasse/komfortkasse-shopware6