Hetzner has something that several other hosting providers do not have, an “official” way to install Arch Linux https://docs.hetzner.com/robot/dedicated-server/operating-systems/standard-images/ This is relatively new, a friend pointed me to this some time ago. Previously you could still install it in a custom way yourself, for example : https://wiki.archlinux.org/index.php/User:PMay/Hetzner_step_by_step