Kuvasz [ˈkuvɒs], an open-source, self-hosted uptime & SSL monitoring service, designed to help you keep track of your websites and services. It provides a modern, user-friendly interface, a powerful REST API, and supports multiple notification channels like email, Discord, Slack, Telegram, and PagerDuty.

You must create /mnt/user/appdata/kuvasz/config.yml file regarding documentation:
https://kuvasz-uptime.dev/setup/installation/

There is another variables, see doc:
https://kuvasz-uptime.dev/setup/configuration/#__tabbed_2_2