Fiscalized Receipt for Slovenian Store

We are looking for an app, a partner or another solution that will allow us to generate a fiscal receipt for online purchases in a Shopify Plus store running out of Slovenia. Slovenia requires all transactions to be registered with their tax agency and a QR code (returned by them) printed on the receipt so the customer knows the sale has been registered. I can’t find an app that does this but I may be using the wrong search criteria. If anyone knows of a successful Slovenian Shopify store that I can use as a model, or an app or other solution, the help is appreciated.