The docs don't seem to have anything about cron job instructions, and of course the cPanel importer just copies them which is expected.
I can get the website id by accessing the shell as the user and navigating to /var/www to get it, but it seems that should be visible somewhere else in the UI. We enable shell access but some won't, so how does a client figure out which path to use for cron jobs?
The root of each domain simply shows the simplified path (i.e. /public_html) but the user has access all the way from /var/www/[websiteId] and I would imagine starting a path with /public_html would not be sufficient.