--agent Add key to SSH agent -d, --dotssh Store keys in ~/.ssh, like normal keys -h, --help help for issue --hours int Expiration, in hours (<72) (default 24) -o, --org string The target Fly.io organization --overwrite Overwrite existing SSH keys in same location, if we generated them -u, --username strings Unix usernames the SSH cert can authenticate as (default [root,fly])