You could try proxying to the db like: flyctl proxy <local:remote> --app <appname> and then running scp on the local instance scp -P <local> root@localhost:/remote_path/to_file local_path/to_file
If there’s an issue with the connection, you might have to run fly ssh issue to issue an ssh credential, this forum post might help → How to copy files off a VM - #24 by Curiositry