for the callback url should i use my custom domain ("example.com") or the fly url ("example-server.fly.dev")? When i use my custom domain it doesn't work, just get
This site can’t be reachedCheck if there is a typo in tweetlaunch.com.DNS_PROBE_FINISHED_NXDOMAIN
This site can’t be reachedCheck if there is a typo in tweetlaunch.com.DNS_PROBE_FINISHED_NXDOMAIN
and when i use the fly server url, it works but then makes the url