Tatry Card is a Chrome extension developed by Jakub Rusnák that aims to simplify the process of entering guest information into Cardberg for Previa users. With this extension, users can easily input their Tatry Card numbers and send the data directly to Cardberg. By simply clicking on the Tatry Card icon next to the address bar, a pre-filled page with guest information will open in Cardberg. Users can then make any necessary adjustments, such as indicating whether the guest is a transportation payer, and click on "activate" to complete the process. This extension streamlines the data entry process and eliminates the need for manual input, making it a convenient tool for Previa users.

For users who do not use Previa but are interested in a similar solution for their reservation system, the developer is open to suggestions and willing to explore possibilities. Tatry Card offers a simple and efficient way to transfer guest information to Cardberg, saving time and effort for receptionists and computer users alike.