Syncing files not in Desktop / Documents via iCloud

Solution 1:

I've come up with two solutions:

  1. Using Google's Backup-and-Sync app, which allows you to select which folders to automatically sync with Google Drive (this doesn't use iCloud through)
  2. Using cron, a MacOS / Linux command-line program, to automatically rsync your directory outside of iCloud path and its copy in the iCloud folder.