No routes generated?

Using Rails 6.1, i have installed the gem (also tried using the git repo main branch), but there are no routes generated:

<img width="1486" alt="Screenshot 2021-01-16 at 12 29 49@2x" src="https://user-images.githubusercontent.com/68361/104811902-8a5f3a00-57f6-11eb-9fd9-4499e4f71df6.png">

Are there some configs I need to perform that are not listed in the readme?