[Remind-Fans] Syntax - delta for saturday preceding reminder

[Jean-Rene David]

Hi,

Kind of new to remind. I have reminders for days
when my son's school is off. I'd like to set the
delta so that I get notified starting on the
preceding Saturday.

I read in the docs that the delta must be an
integer. But I assume there's a way to do this.

Any help appreciated,

-- 
JR