Railway deployment doesn't create variables

Would you like to try this out, but I'm deployed to the railway? The documentation says to go to the variables tab and change AUTH_TOKEN, but no variable exists when deployed. Can this be fixed please?

<img width="1992" height="1054" alt="Image" src="https://github.com/user-attachments/assets/32a68e13-62e4-4403-8c05-cf25976fed9e" />