Mac M1, on login button click: "No credentials and stdin is not a terminal - terminating." Pressing okay displays another popup: "Error: itch.io failed to respond."
Love your software btw, I use it daily on windows :D
Hm, unfortunately I don't have a mac available to debug this. You could try checking if the copy of butler shipped alongside the app works as expected when run directly, or you could try building from source (available here)?