Arch Linux cloud images disable SSH password authentication by default. Added cloud-init directives to: - Enable ssh_pwauth - Set the darkforge user password via chpasswd (plaintext, non-expiring) - Write /etc/ssh/sshd_config.d/99-darkforge.conf enabling PasswordAuthentication - Restart sshd after config is written Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>