Configuring automatic backups

Thanks for the info, I missed the time of day field in the admin section. Regarding the scripting, we have a process where we install on-prem Discourse instance via a shell script. This installs Discourse docker and automates some config setting changes before rebuild. Is it possible to setup the appropriate backup settings in the config before rebuild or do this another way via the command line e.g. rake task without manually executing launcher to enter app and update settings