Feature Request - Increment pubished after date within config file

[kangfat]

Would it be possible to add the ability to increment the published after date in the config? For example, everyday I backup posts from Patreon via cronjob and then move the files to a different directory structure for a different application. I don't want to have to maintain two copies of the data if I don't have to and having the ability to increment the published after date automatically would make things a lot easier.